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General Mechanical

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Radiation to Surroundings

    • thomas.fellinger
      Subscriber

      Hello,

      I get an unknow error doing a thermal simulation by radiation:
      A plate with a certain temperature is surrounded by a box. I want to simulate to investigate the temperature over time.

      If the box has a mesh size of 20mm and the plate 5mm than it works. Changing the mesh size only of the plate to 1mm, an unknow error occurs, see both solver output files below.
      I also tried to reduce the mesh size of the box - no positive result.

      Someone my have an idea why this happens (solver setting, boundares, mesh,...)?

       

       

       

       

       

       

      Case 1: Error 1mm mesh size of the plate, other bodies 20mm

       

      Computergenerierter Alternativtext:
Ansys Workbench - Error 
An unknown error occurred during solution. Check the Solver 
Output on the Solution Information object for possible 
causes.

      Solver Output

       

       Ansys Mechanical Enterprise Academic Research    

       

       

       *------------------------------------------------------------------*

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       |   W E L C O M E   T O   T H E   A N S Y S (R)  P R O G R A M     |

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       *------------------------------------------------------------------*

       

       

       

       

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       SOLIDWORKS Geometry Interface 2022 R2  

       

       

                *****  MAPDL COMMAND LINE ARGUMENTS  *****

        BATCH MODE REQUESTED (-b)    = NOLIST

        INPUT FILE COPY MODE (-c)    = COPY

        DISTRIBUTED MEMORY PARALLEL REQUESTED

            15 PARALLEL PROCESSES REQUESTED WITH SINGLE THREAD PER PROCESS (FORCED)

          TOTAL OF    15 CORES REQUESTED

        INPUT FILE NAME              = E:\Test_Beam_1.63MW_Sig5mm\_ProjectScratch\ScrA868\dummy.dat

        OUTPUT FILE NAME             = E:\Test_Beam_1.63MW_Sig5mm\_ProjectScratch\ScrA868\solve.out

        START-UP FILE MODE           = NOREAD

        STOP FILE MODE               = NOREAD

        GPU ACCELERATOR OPTION REQUESTED

           1 GPU ACCELERATOR DEVICES REQUESTED

       

       RELEASE= 2022 R2              BUILD= 22.2      UP20220516   VERSION=WINDOWS x64

       CURRENT JOBNAME=file0  13:36:36  DEC 07, 2024 CP=      0.219

       

       

       PARAMETER _DS_PROGRESS =     999.0000000   

       

       /INPUT FILE= ds.dat  LINE=       0

       

       

       

       *** NOTE ***                            CP =       3.438   TIME= 13:36:41

       The /CONFIG,NOELDB command is not valid in a distributed memory        

       parallel solution.  Command is ignored.                                

       

       *GET  _WALLSTRT  FROM  ACTI  ITEM=TIME WALL  VALUE=  13.6113889   

       

       TITLE=

       Test_Radiation--Transient Thermal (B5)                                       

       

        ACT Extensions:

            LSDYNA, 2022.2

            5f463412-bd3e-484b-87e7-cbc0a665e474, wbex

       /COM,     ANSYSMotion, 2022.2

            20180725-3f81-49eb-9f31-41364844c769, wbex

       

       

       SET PARAMETER DIMENSIONS ON  _WB_PROJECTSCRATCH_DIR

        TYPE=STRI  DIMENSIONS=      248        1        1

       

       PARAMETER _WB_PROJECTSCRATCH_DIR(1) = E:\Test_Beam_1.63MW_Sig5mm\_ProjectScratch\ScrA868\

       

       SET PARAMETER DIMENSIONS ON  _WB_SOLVERFILES_DIR

        TYPE=STRI  DIMENSIONS=      248        1        1

       

       PARAMETER _WB_SOLVERFILES_DIR(1) = E:\Test_Beam_1.63MW_Sig5mm\Test_Radiation_files\dp0\SYS-30\MECH\

       

       SET PARAMETER DIMENSIONS ON  _WB_USERFILES_DIR

        TYPE=STRI  DIMENSIONS=      248        1        1

       

       PARAMETER _WB_USERFILES_DIR(1) = E:\Test_Beam_1.63MW_Sig5mm\Test_Radiation_files\user_files\

       --- Data in consistent NMM units. See Solving Units in the help system for more

       

       MPA UNITS SPECIFIED FOR INTERNAL   

        LENGTH      = MILLIMETERS (mm)

        MASS        = TONNE (Mg)

        TIME        = SECONDS (sec)

        TEMPERATURE = CELSIUS (C)

        TOFFSET     = 273.0

        FORCE       = NEWTON (N)

        HEAT        = MILLIJOULES (mJ)

       

       INPUT  UNITS ARE ALSO SET TO MPA

       

       *** MAPDL - ENGINEERING ANALYSIS SYSTEM  RELEASE 2022 R2          22.2     ***

       Ansys Mechanical Enterprise Academic Research    

       00000000  VERSION=WINDOWS x64   13:36:41  DEC 07, 2024 CP=      3.438

       

       Test_Radiation--Transient Thermal (B5)                                       

       

       

       

                ***** MAPDL ANALYSIS DEFINITION (PREP7) *****

       *********** Nodes for the whole assembly ***********

       *********** Elements for Body 1 "cover1" ***********

       *********** Elements for Body 2 "cover2" ***********

       *********** Elements for Body 3 "cover3" ***********

       *********** Elements for Body 4 "cover4" ***********

       *********** Elements for Body 5 "End1" ***********

       *********** Elements for Body 6 "End2" ***********

       *********** Elements for Body 7 "SYS-29\400x400x5\Solid" ***********

       *********** Send User Defined Coordinate System(s) ***********

       *********** Send Materials ***********

       *********** Create Contact "Contact Region" ***********

                   Real Constant Set For Above Contact Is 9 & 8

       *********** Create Contact "Contact Region 2" ***********

                   Real Constant Set For Above Contact Is 11 & 10

       *********** Create Contact "Contact Region 3" ***********

                   Real Constant Set For Above Contact Is 13 & 12

       *********** Create Contact "Contact Region 4" ***********

                   Real Constant Set For Above Contact Is 15 & 14

       *********** Send Named Selection as Node Component ***********

       *********** Send Named Selection as Node Component ***********

       *********** Send Named Selection as Node Component ***********

       *********** Send Named Selection as Element Component ***********

       *********** Send Named Selection as Node Component ***********

       *********** Send Named Selection as Node Component ***********

       *********** Send Named Selection as Node Component ***********

       *********** Define Temperature Constraint ***********

       *********** Define Temperature Constraint ***********

       *********** Create "ToSurface(Closed)" Radiation ***********

       *********** Create "ToSurface(Closed)" Radiation ***********

       ***************** Define Uniform Initial temperature ***************

       

       

       ***** ROUTINE COMPLETED *****  CP =        33.188

       

       

       --- Number of total nodes = 3895043

       --- Number of contact elements = 960

       --- Number of spring elements = 0

       --- Number of bearing elements = 0

       --- Number of solid elements = 828438

       --- Number of condensed parts = 0

       --- Number of total elements = 829398

       

       *GET  _WALLBSOL  FROM  ACTI  ITEM=TIME WALL  VALUE=  13.6130556   

       ****************************************************************************

       *************************    SOLUTION       ********************************

       ****************************************************************************

       

       *****  MAPDL SOLUTION ROUTINE  *****

       

       

       PERFORM A TRANSIENT ANALYSIS

        THIS WILL BE A NEW ANALYSIS

       

       STEP BOUNDARY CONDITION KEY= 1

       

       USE PRECONDITIONED CONJUGATE GRADIENT SOLVER

        CONVERGENCE TOLERANCE = 1.00000E-08

        MAXIMUM ITERATION     = NumNode*DofPerNode*  1.0000   

       

       CONTACT INFORMATION PRINTOUT LEVEL       1

       

       DO NOT SAVE ANY RESTART FILES AT ALL

       

       DO NOT COMBINE ELEMENT MATRIX FILES (.emat) AFTER DISTRIBUTED PARALLEL SOLUTION

       

       DO NOT COMBINE ELEMENT SAVE DATA FILES (.esav) AFTER DISTRIBUTED PARALLEL SOLUTION

       

       Use Full Nonlinear Thermal Transient Solution

       

       NLHIST: ADDED NODAL RESULTS HISTORY FOR:

             NAME = MAX_TEMP                       

        ITEM/COMP = TEMPMAX

             NODE =         0

       

       NLHIST: ADDED NODAL RESULTS HISTORY FOR:

             NAME = MIN_TEMP                       

        ITEM/COMP = TEMPMIN

             NODE =         0

       ********* Initial Time Increment Check And Fourier Modulus *********

        Specified Initial Time Increment: 0.05

        Estimated Increment Needed, le*le/alpha, Body 1: 13.957

        Estimated Increment Needed, le*le/alpha, Body 2: 13.957

        Estimated Increment Needed, le*le/alpha, Body 3: 13.957

        Estimated Increment Needed, le*le/alpha, Body 4: 13.957

        Estimated Increment Needed, le*le/alpha, Body 5: 9.39451

        Estimated Increment Needed, le*le/alpha, Body 6: 9.39453

        Estimated Increment Needed, le*le/alpha, Body 7: 0.0563124

       ****************************************************

       ******************* SOLVE FOR LS 1 OF 1 ****************

       

       SPECIFIED CONSTRAINT TEMP FOR PICKED NODES

       SET ACCORDING TO TABLE PARAMETER = _LOADVARI939

       

       Memory resident data base increased from      2048 MB to      4096 MB.

       

       SPECIFIED CONSTRAINT TEMP FOR PICKED NODES

       REAL=  20.0000000       IMAG=  0.00000000   

       

       SELECT      COMPONENT _CM617                                                                                                                                                                                                                                                         

       

       SELECT      ALL ELEMENTS HAVING ANY NODE IN NODAL SET.

       

           324788 ELEMENTS (OF     829398  DEFINED) SELECTED FROM

         984002 SELECTED NODES BY  ESLN COMMAND.

       

       GENERATE SURFACE LOAD RDSF ON SURFACE DEFINED BY ALL SELECTED NODES

       EMISSIVITY =   1.00           ENCLOSURE NUMBER =        1.

       

       NUMBER OF RDSF ELEMENT FACE LOADS STORED =     328000

       

       ALL SELECT   FOR ITEM=NODE COMPONENT=   

        IN RANGE         1 TO    3895043 STEP          1

       

          3895043  NODES (OF    3895043  DEFINED) SELECTED BY NSEL  COMMAND.

       

       ENCLOSURE=  1 VIEWFACTOR SCALE METHOD =  1

                     ITERATIONS =  100

                     TOLERANCE = 1.000000047E-03

       

       SELECT      COMPONENT _CM676                                                                                                                                                                                                                                                         

       

       SELECT      ALL ELEMENTS HAVING ANY NODE IN NODAL SET.

       

            29398 ELEMENTS (OF     829398  DEFINED) SELECTED FROM

          84844 SELECTED NODES BY  ESLN COMMAND.

       

       GENERATE SURFACE LOAD RDSF ON SURFACE DEFINED BY ALL SELECTED NODES

       EMISSIVITY =  0.500           ENCLOSURE NUMBER =        1.

       

       NUMBER OF RDSF ELEMENT FACE LOADS STORED =      27966

       

       ALL SELECT   FOR ITEM=NODE COMPONENT=   

        IN RANGE         1 TO    3895043 STEP          1

       

          3895043  NODES (OF    3895043  DEFINED) SELECTED BY NSEL  COMMAND.

       

       ALL SELECT   FOR ITEM=NODE COMPONENT=   

        IN RANGE         1 TO    3895043 STEP          1

       

          3895043  NODES (OF    3895043  DEFINED) SELECTED BY NSEL  COMMAND.

       

       ALL SELECT   FOR ITEM=ELEM COMPONENT=   

        IN RANGE         1 TO    1215626 STEP          1

       

           829398  ELEMENTS (OF     829398  DEFINED) SELECTED BY  ESEL  COMMAND.

       

       PRINTOUT RESUMED BY /GOP

       

       DO NOT USE AUTOMATIC TIME STEPPING THIS LOAD STEP

       

       USE       2 SUBSTEPS INITIALLY THIS LOAD STEP FOR ALL  DEGREES OF FREEDOM

       FOR AUTOMATIC TIME STEPPING:

         USE      2 SUBSTEPS AS A MAXIMUM

         USE      2 SUBSTEPS AS A MINIMUM

       

       TIME= 0.10000   

       

       INCLUDE TRANSIENT EFFECTS FOR  ALL DEGREES OF FREEDOM THIS LOAD STEP

       

       ERASE THE CURRENT DATABASE OUTPUT CONTROL TABLE.

       

       

       WRITE ALL  ITEMS TO THE DATABASE WITH A FREQUENCY OF NONE

         FOR ALL APPLICABLE ENTITIES

       

       WRITE NSOL ITEMS TO THE DATABASE WITH A FREQUENCY OF ALL

         FOR ALL APPLICABLE ENTITIES

       

       WRITE RSOL ITEMS TO THE DATABASE WITH A FREQUENCY OF ALL

         FOR ALL APPLICABLE ENTITIES

       

       WRITE EANG ITEMS TO THE DATABASE WITH A FREQUENCY OF ALL

         FOR ALL APPLICABLE ENTITIES

       

       WRITE VENG ITEMS TO THE DATABASE WITH A FREQUENCY OF ALL

         FOR ALL APPLICABLE ENTITIES

       

       WRITE FFLU ITEMS TO THE DATABASE WITH A FREQUENCY OF ALL

         FOR ALL APPLICABLE ENTITIES

       

       WRITE CONT ITEMS TO THE DATABASE WITH A FREQUENCY OF ALL

         FOR ALL APPLICABLE ENTITIES

       

       WRITE MISC ITEMS TO THE DATABASE WITH A FREQUENCY OF ALL

         FOR ALL APPLICABLE ENTITIES

       

       CONVERGENCE ON HEAT BASED ON THE NORM OF THE N-R LOAD

         WITH A TOLERANCE OF 0.1000E-03 AND A MINIMUM REFERENCE VALUE OF 0.1000E-02

         USING THE L2 NORM (CHECK THE SRSS VALUE)

       

       UNDER RELAXATION FOR RADIATION FLUX=   0.10000

       

       TOLERENCE FOR RADIOSITY FLUX=   0.00001

       

       USING JACOBI ITERATIVE SOLVER FOR RADIOSITY SOLUTION

       FOR 3D ENCLOSURES.

       USING GSEIDEL ITERATIVE SOLVER FOR RADIOSITY SOLUTION

       FOR 2D ENCLOSURES.

       

       MAXIMUM NUMBER OF ITERATIONS=  1000

       TOLERENCE FOR ITERATIVE SOLVER=   0.00010

       RELAXATION FOR ITERATIVE SOLVER=   0.10000

       

       HEMICUBE RESOLUTION=  100

       

       MIN NORMALIZED DIST BEFORE AUTO SUBDIVIDE= 1.000000000E-09

       

       SELECT      COMPONENT _CM617                                                                                                                                                                                                                                                         

       

       SELECT      ALL ELEMENTS HAVING ANY NODE IN NODAL SET.

       

           324788 ELEMENTS (OF     829398  DEFINED) SELECTED FROM

         984002 SELECTED NODES BY  ESLN COMMAND.

       

      BEFORE SYMMETRIZATION:

       

      NUMBER OF RADIATION NODES CREATED =     328002

       

      NUMBER OF RADIOSITY SURFACE ELEMENTS CREATED =     328000

       

      AFTER SYMMETRIZATION:

       

      FULL NUMBER OF RADIATION NODES CREATED =     328002

       

      FULL NUMBER OF RADIOSITY SURFACE ELEMENTS CREATED =    328000

       

       ALL SELECT   FOR ITEM=NODE COMPONENT=   

        IN RANGE         1 TO    4223045 STEP          1

       

          4223045  NODES (OF    4223045  DEFINED) SELECTED BY NSEL  COMMAND.

       

       ALL SELECT   FOR ITEM=ELEM COMPONENT=   

        IN RANGE         1 TO    1543626 STEP          1

       

          1157398  ELEMENTS (OF    1157398  DEFINED) SELECTED BY  ESEL  COMMAND.

       

       SELECT      COMPONENT _CM676                                                                                                                                                                                                                                                         

       

       SELECT      ALL ELEMENTS HAVING ANY NODE IN NODAL SET.

       

            29398 ELEMENTS (OF    1157398  DEFINED) SELECTED FROM

          84844 SELECTED NODES BY  ESLN COMMAND.

       

      BEFORE SYMMETRIZATION:

       

      NUMBER OF RADIATION NODES CREATED =      28440

       

      NUMBER OF RADIOSITY SURFACE ELEMENTS CREATED =      27966

       

      AFTER SYMMETRIZATION:

       

      FULL NUMBER OF RADIATION NODES CREATED =      28440

       

      FULL NUMBER OF RADIOSITY SURFACE ELEMENTS CREATED =     27966

       

       ALL SELECT   FOR ITEM=NODE COMPONENT=   

        IN RANGE         1 TO    4251485 STEP          1

       

          4251485  NODES (OF    4251485  DEFINED) SELECTED BY NSEL  COMMAND.

       

       ALL SELECT   FOR ITEM=ELEM COMPONENT=   

        IN RANGE         1 TO    1571592 STEP          1

       

          1185364  ELEMENTS (OF    1185364  DEFINED) SELECTED BY  ESEL  COMMAND.

       

       *GET  ANSINTER_  FROM  ACTI  ITEM=INT        VALUE=  0.00000000   

       

       *IF  ANSINTER_                         ( =   0.00000     )  NE 

            0                                 ( =   0.00000     )  THEN   

       

       *ENDIF

       

       *** NOTE ***                            CP =      67.344   TIME= 13:36:52

       The automatic domain decomposition logic has selected the MESH domain  

       decomposition method with 15 processes per solution.                   

       

       *****  MAPDL SOLVE    COMMAND  *****

       

       CALCULATING VIEW FACTORS USING HEMICUBE METHOD

       

       RETRIEVED    1 ENCLOSURES.

       TOTAL OF   355966 DEFINED ELEMENT FACES.

       

       # ENCLOSURE =     1 # SURFACES =355966 # NODES =356442

       

       

         ******************************************************************************

                      V I E W F A C T O R    S M O O T H I N G

         ******************************************************************************

       

          Smoothing of viewfactor matrix...

            Max iterations = 100

            Tolerance      = 0.001

            row sum total should be                   = 355966.0000

            row sum total before forcing symmetry     = 355965.9605

            row sum total after forcing symmetry      = 355965.9605

            row sum total after smoothing             = 355966.0025

            Raw rowsum error min                      = -5.0902e-05

            Raw rowsum error max                      =  8.3447e-07

            Raw rowsum error mean                     = -1.1107e-07 +/- 4.1666e-07

            Symmetric rowsum error min                = -5.0902e-05

            Symmetric rowsum error max                =  8.3447e-07

            Symmetric rowsum error mean               = -1.1107e-07 +/- 6.2869e-08

            Smoothed rowsum error min                 = -3.5763e-07

            Smoothed rowsum error max                 =  5.9605e-07

            Smoothed rowsum error mean                =  6.9275e-09 +/- 1.4241e-09

            number of iterations to smooth            = 1

       

       

         ******************************************************************************

              E N D    O F    V I E W F A C T O R    S M O O T H I N G

         ******************************************************************************

       

       

       

      TIME OF CALCULATION FOR THIS ENCLOSURE =    1659.38   

       

       CHECKING VIEW FACTOR SUM

       

       VIEW FACTOR CALCULATION COMPLETE

       

       WRITING VIEW FACTORS TO FILE file0.vf                                                                                                                                                                                                                                                           

       VIEW FACTORS WERE WRITTEN TO FILE file0.vf                                                                                                                                                                                                                                                           

       

       *** WARNING ***                         CP =    2502.359   TIME= 15:15:12

       Some radiation enclosures have viewfactor scaling.  Use VFSM,STAT      

       command to check the status.  Also note that scaling is ignored if the 

       viewfactor sum is <= 0.0.                                              

       

       *** WARNING ***                         CP =    2504.047   TIME= 15:15:12

       Element shape checking is currently inactive.  Issue SHPP,ON or        

       SHPP,WARN to reactivate, if desired.                                   

       

       *** NOTE ***                            CP =    2512.906   TIME= 15:15:15

       The model data was checked and warning messages were found.            

        Please review output or errors file (                                 

       E:\Test_Beam_1.63MW_Sig5mm\_ProjectScratch\ScrA868\file0.err ) for     

       these warning messages.                                                

       

       *** MAPDL - ENGINEERING ANALYSIS SYSTEM  RELEASE 2022 R2          22.2     ***

       Ansys Mechanical Enterprise Academic Research    

       00000000  VERSION=WINDOWS x64   15:15:15  DEC 07, 2024 CP=   2513.234

       

       Test_Radiation--Transient Thermal (B5)                                       

       

       

       

                             S O L U T I O N   O P T I O N S

       

         PROBLEM DIMENSIONALITY. . . . . . . . . . . . .3-D                 

         DEGREES OF FREEDOM. . . . . . TEMP

         ANALYSIS TYPE . . . . . . . . . . . . . . . . .TRANSIENT           

            SOLUTION METHOD. . . . . . . . . . . . . . .FULL                

         OFFSET TEMPERATURE FROM ABSOLUTE ZERO . . . . .  273.15   

         EQUATION SOLVER OPTION. . . . . . . . . . . . .PCG               

            TOLERANCE. . . . . . . . . . . . . . . . . . 1.00000E-08

         GLOBALLY ASSEMBLED MATRIX . . . . . . . . . . .SYMMETRIC 

       

       *** NOTE ***                            CP =    2513.766   TIME= 15:15:15

       This nonlinear analysis defaults to using the full Newton-Raphson      

       solution procedure.  This can be modified using the NROPT command.     

       

       *** NOTE ***                            CP =    2513.766   TIME= 15:15:16

       The conditions for direct assembly have been met.  No .emat or .erot   

       files will be produced.                                                

       

       *** NOTE ***                            CP =    2520.984   TIME= 15:15:17

       Symmetric Deformable- deformable contact pair identified by real       

       constant set 8 and contact element type 8 has been set up.  The        

       companion pair has real constant set ID 9.  Both pairs should have the 

       same behavior.                                                         

       ANSYS will keep the current pair and deactivate its companion pair,    

       resulting in asymmetric contact.                                       

       Pure thermal contact is activated.

       The emissivity is defined through the material property.

       Thermal convection coefficient, environment temperature, and

        heat flux are defined using the SFE command.

       Target temperature is used for convection/radiation calculation

        for near field contact.

       Small sliding logic is assumed

       Contact detection at: Gauss integration point

       Average contact surface length                13.216   

       Average contact pair depth                    14.814   

       Average target surface length                 14.984   

       Default pinball region factor PINB           0.25000   

       The resulting pinball region                  3.7036   

       Initial penetration/gap is excluded.

       Bonded contact (always) is defined.

       Thermal contact conductance coef. TCC         255.64   

       Heat radiation is excluded.

       

       *** NOTE ***                            CP =    2521.172   TIME= 15:15:17

       Max.  Initial penetration 1.704990738E-05 was detected between contact 

       element 1214749 and target element 1214870.                            

       You may move entire target surface by : x= 1.685318E-05, y=            

       2.582569568E-06, z= 4.680688417E-19,to reduce initial penetration.     

       ****************************************

       

       

       *** NOTE ***                            CP =    2521.172   TIME= 15:15:17

       Symmetric Deformable- deformable contact pair identified by real       

       constant set 9 and contact element type 8 has been set up.  The        

       companion pair has real constant set ID 8.  Both pairs should have the 

       same behavior.                                                         

       ANSYS will deactivate the current pair and keep its companion pair,    

       resulting in asymmetric contact.                                       

       Pure thermal contact is activated.

       The emissivity is defined through the material property.

       Thermal convection coefficient, environment temperature, and

        heat flux are defined using the SFE command.

       Target temperature is used for convection/radiation calculation

        for near field contact.

       Small sliding logic is assumed

       Contact detection at: Gauss integration point

       Average contact surface length                13.295   

       Average contact pair depth                    22.753   

       Average target surface length                 14.984   

       Default pinball region factor PINB           0.25000   

       The resulting pinball region                  5.6884   

       Initial penetration/gap is excluded.

       Bonded contact (always) is defined.

       Thermal contact conductance coef. TCC         255.64   

       Heat radiation is excluded.

       

       *** NOTE ***                            CP =    2521.172   TIME= 15:15:17

       Max.  Initial penetration 1.705060237E-05 was detected between contact 

       element 1214809 and target element 1214690.                            

       ****************************************

       

       

       *** NOTE ***                            CP =    2521.172   TIME= 15:15:17

       Symmetric Deformable- deformable contact pair identified by real       

       constant set 10 and contact element type 10 has been set up.  The      

       companion pair has real constant set ID 11.  Both pairs should have    

       the same behavior.                                                     

       ANSYS will keep the current pair and deactivate its companion pair,    

       resulting in asymmetric contact.                                       

       Pure thermal contact is activated.

       The emissivity is defined through the material property.

       Thermal convection coefficient, environment temperature, and

        heat flux are defined using the SFE command.

       Target temperature is used for convection/radiation calculation

        for near field contact.

       Small sliding logic is assumed

       Contact detection at: Gauss integration point

       Average contact surface length                13.216   

       Average contact pair depth                    14.814   

       Average target surface length                 14.984   

       Default pinball region factor PINB           0.25000   

       The resulting pinball region                  3.7036   

       Initial penetration/gap is excluded.

       Bonded contact (always) is defined.

       Thermal contact conductance coef. TCC         255.64   

       Heat radiation is excluded.

       

       *** NOTE ***                            CP =    2521.172   TIME= 15:15:17

       Max.  Initial penetration 1.703900632E-05 was detected between contact 

       element 1215012 and target element 1215134.                            

       You may move entire target surface by : x= 7.33329464E-06, y=          

       -1.538019916E-05, z= 8.119307397E-20,to reduce initial penetration.    

       ****************************************

       

       

       *** NOTE ***                            CP =    2521.172   TIME= 15:15:17

       Symmetric Deformable- deformable contact pair identified by real       

       constant set 11 and contact element type 10 has been set up.  The      

       companion pair has real constant set ID 10.  Both pairs should have    

       the same behavior.                                                     

       ANSYS will deactivate the current pair and keep its companion pair,    

       resulting in asymmetric contact.                                       

       Pure thermal contact is activated.

       The emissivity is defined through the material property.

       Thermal convection coefficient, environment temperature, and

        heat flux are defined using the SFE command.

       Target temperature is used for convection/radiation calculation

        for near field contact.

       Small sliding logic is assumed

       Contact detection at: Gauss integration point

       Average contact surface length                17.922   

       Average contact pair depth                    22.753   

       Average target surface length                 14.984   

       Default pinball region factor PINB           0.25000   

       The resulting pinball region                  5.6884   

       Initial penetration/gap is excluded.

       Bonded contact (always) is defined.

       Thermal contact conductance coef. TCC         255.64   

       Heat radiation is excluded.

       

       *** NOTE ***                            CP =    2521.172   TIME= 15:15:17

       Max.  Initial penetration 1.703995895E-05 was detected between contact 

       element 1215073 and target element 1214953.                            

       ****************************************

       

       

       *** NOTE ***                            CP =    2521.172   TIME= 15:15:17

       Symmetric Deformable- deformable contact pair identified by real       

       constant set 12 and contact element type 12 has been set up.  The      

       companion pair has real constant set ID 13.  Both pairs should have    

       the same behavior.                                                     

       ANSYS will keep the current pair and deactivate its companion pair,    

       resulting in asymmetric contact.                                       

       Pure thermal contact is activated.

       The emissivity is defined through the material property.

       Thermal convection coefficient, environment temperature, and

        heat flux are defined using the SFE command.

       Target temperature is used for convection/radiation calculation

        for near field contact.

       Small sliding logic is assumed

       Contact detection at: Gauss integration point

       Average contact surface length                13.216   

       Average contact pair depth                    14.814   

       Average target surface length                 14.984   

       Default pinball region factor PINB           0.25000   

       The resulting pinball region                  3.7036   

       Initial penetration/gap is excluded.

       Bonded contact (always) is defined.

       Thermal contact conductance coef. TCC         255.64   

       Heat radiation is excluded.

       

       *** NOTE ***                            CP =    2521.172   TIME= 15:15:17

       Max.  Initial penetration 1.705299849E-05 was detected between contact 

       element 1215229 and target element 1215349.                            

       You may move entire target surface by : x= -2.583037783E-06, y=        

       1.685623545E-05, z= 4.453532888E-19,to reduce initial penetration.     

       ****************************************

       

       

       *** NOTE ***                            CP =    2521.172   TIME= 15:15:17

       Symmetric Deformable- deformable contact pair identified by real       

       constant set 13 and contact element type 12 has been set up.  The      

       companion pair has real constant set ID 12.  Both pairs should have    

       the same behavior.                                                     

       ANSYS will deactivate the current pair and keep its companion pair,    

       resulting in asymmetric contact.                                       

       Pure thermal contact is activated.

       The emissivity is defined through the material property.

       Thermal convection coefficient, environment temperature, and

        heat flux are defined using the SFE command.

       Target temperature is used for convection/radiation calculation

        for near field contact.

       Small sliding logic is assumed

       Contact detection at: Gauss integration point

       Average contact surface length                13.295   

       Average contact pair depth                    22.753   

       Average target surface length                 14.984   

       Default pinball region factor PINB           0.25000   

       The resulting pinball region                  5.6884   

       Initial penetration/gap is excluded.

       Bonded contact (always) is defined.

       Thermal contact conductance coef. TCC         255.64   

       Heat radiation is excluded.

       

       *** NOTE ***                            CP =    2521.172   TIME= 15:15:17

       Max.  Initial penetration 1.705332427E-05 was detected between contact 

       element 1215288 and target element 1215170.                            

       ****************************************

       

       

       *** NOTE ***                            CP =    2521.172   TIME= 15:15:17

       Symmetric Deformable- deformable contact pair identified by real       

       constant set 14 and contact element type 14 has been set up.  The      

       companion pair has real constant set ID 15.  Both pairs should have    

       the same behavior.                                                     

       ANSYS will keep the current pair and deactivate its companion pair,    

       resulting in asymmetric contact.                                       

       Pure thermal contact is activated.

       The emissivity is defined through the material property.

       Thermal convection coefficient, environment temperature, and

        heat flux are defined using the SFE command.

       Target temperature is used for convection/radiation calculation

        for near field contact.

       Small sliding logic is assumed

       Contact detection at: Gauss integration point

       Average contact surface length                13.216   

       Average contact pair depth                    14.814   

       Average target surface length                 14.984   

       Default pinball region factor PINB           0.25000   

       The resulting pinball region                  3.7036   

       Initial penetration/gap is excluded.

       Bonded contact (always) is defined.

       Thermal contact conductance coef. TCC         255.64   

       Heat radiation is excluded.

       

       *** NOTE ***                            CP =    2521.172   TIME= 15:15:17

       Max.  Initial penetration 1.70139613E-05 was detected between contact  

       element 1215492 and target element 1215613.                            

       You may move entire target surface by : x= -1.535759236E-05, y=        

       -7.322515696E-06, z= 3.647501262E-20,to reduce initial penetration.    

       ****************************************

       

       

       *** NOTE ***                            CP =    2521.172   TIME= 15:15:17

       Symmetric Deformable- deformable contact pair identified by real       

       constant set 15 and contact element type 14 has been set up.  The      

       companion pair has real constant set ID 14.  Both pairs should have    

       the same behavior.                                                     

       ANSYS will deactivate the current pair and keep its companion pair,    

       resulting in asymmetric contact.                                       

       Pure thermal contact is activated.

       The emissivity is defined through the material property.

       Thermal convection coefficient, environment temperature, and

        heat flux are defined using the SFE command.

       Target temperature is used for convection/radiation calculation

        for near field contact.

       Small sliding logic is assumed

       Contact detection at: Gauss integration point

       Average contact surface length                17.922   

       Average contact pair depth                    22.753   

       Average target surface length                 14.984   

       Default pinball region factor PINB           0.25000   

       The resulting pinball region                  5.6884   

       Initial penetration/gap is excluded.

       Bonded contact (always) is defined.

       Thermal contact conductance coef. TCC         255.64   

       Heat radiation is excluded.

       

       *** NOTE ***                            CP =    2521.172   TIME= 15:15:17

       Max.  Initial penetration 1.701500617E-05 was detected between contact 

       element 1215552 and target element 1215433.                            

       ****************************************

       

       

       

       

       

       

           D I S T R I B U T E D   D O M A I N   D E C O M P O S E R

       

        ...Number of elements: 1185364

        ...Number of nodes:    4251485

        ...Decompose to 15 CPU domains

        ...Element load balance ratio =     1.028

       

       

                            L O A D   S T E P   O P T I O N S

       

         LOAD STEP NUMBER. . . . . . . . . . . . . . . .     1

         TIME AT END OF THE LOAD STEP. . . . . . . . . . 0.10000   

         NUMBER OF SUBSTEPS. . . . . . . . . . . . . . .     2

         MAXIMUM NUMBER OF EQUILIBRIUM ITERATIONS. . . .    15

         STEP CHANGE BOUNDARY CONDITIONS . . . . . . . .   YES

         TRANSIENT (INERTIA) EFFECTS

            THERMAL DOFS . . . . . . . . . . . . . . . .    ON

         TRANSIENT INTEGRATION PARAMETERS

            THETA. . . . . . . . . . . . . . . . . . . .  1.0000   

            OSCILLATION LIMIT CRITERION. . . . . . . . . 0.50000   

            TOLERANCE. . . . . . . . . . . . . . . . . .  0.0000   

         TERMINATE ANALYSIS IF NOT CONVERGED . . . . . .YES (EXIT) 

         CONVERGENCE CONTROLS

            LABEL   REFERENCE    TOLERANCE  NORM     MINREF

             HEAT    0.000       0.1000E-03   2     0.1000E-02

         PRINT OUTPUT CONTROLS . . . . . . . . . . . . .NO PRINTOUT

         DATABASE OUTPUT CONTROLS

            ITEM     FREQUENCY   COMPONENT

             ALL       NONE              

            NSOL        ALL              

            RSOL        ALL              

            EANG        ALL              

            VENG        ALL              

            FFLU        ALL              

            CONT        ALL              

            MISC        ALL              

       

       

       SOLUTION MONITORING INFO IS WRITTEN TO FILE= file.mntr                                                                                                                                                                                                                                                          

       MAXIMUM NUMBER OF EQUILIBRIUM ITERATIONS HAS BEEN MODIFIED             

        TO BE, NEQIT = 1000, BY SOLUTION CONTROL LOGIC.                       

       

       RADIOSITY SOLVER CALCULATION

       

       

      Case 2: No error 5mm mesh size of the plate, other bodies 20mm

       

       

       

       

       

       

       

      Solver Output

       

       Ansys Mechanical Enterprise Academic Research    

       

       

       *------------------------------------------------------------------*

       |                                                                  |

       |   W E L C O M E   T O   T H E   A N S Y S (R)  P R O G R A M     |

       |                                                                  |

       *------------------------------------------------------------------*

       

       

       

       

       ***************************************************************

       *         ANSYS MAPDL 2022 R2          LEGAL NOTICES          *

       ***************************************************************

       *                                                             *

       * Copyright 1971-2022 Ansys, Inc.  All rights reserved.       *

       * Unauthorized use, distribution or duplication is            *

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       * documentation CD or online help for the complete Legal      *

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       * The software products and documentation are furnished by    *

       * Ansys, Inc. or its subsidiaries under a software license    *

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       * non-disclosure, copying, length and nature of use,          *

       * compliance with exporting laws, warranties, disclaimers,    *

       * limitations of liability, and remedies, and other           *

       * provisions.  The software products and documentation may be *

       * used, disclosed, transferred, or copied only in accordance  *

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       * re-export.                                                  *

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       * For U.S. Government users, except as specifically granted   *

       * by the Ansys, Inc. software license agreement, the use,     *

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       * software license agreement and FAR 12.212 (for non-DOD      *

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       ***************************************************************

       

       2022 R2

          

       Point Releases and Patches installed:  

          

       ANSYS, Inc. License Manager 2022 R2

       Discovery 2022 R2  

       SpaceClaim 2022 R2 

       Ansys Sherlock 2022 R2 

       Autodyn 2022 R2

       LS-DYNA 2022 R2

       CFD-Post only 2022 R2  

       CFX (includes CFD-Post) 2022 R2

       Chemkin 2022 R2

       FENSAP-ICE 2022 R2 

       Fluent (includes CFD-Post) 2022 R2 

       Polyflow (includes CFD-Post) 2022 R2

       Forte (includes EnSight) 2022 R2

       TurboGrid 2022 R2  

       ICEM CFD 2022 R2

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       Mechanical Products 2022 R2

       Remote Solve Manager Standalone Services 2022 R2

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       Viewer 2022 R2 

       ACIS Geometry Interface 2022 R2

       AutoCAD Geometry Interface 2022 R2 

       Catia, Version 4 Geometry Interface 2022 R2

       Catia, Version 5 Geometry Interface 2022 R2

       Catia, Version 6 Geometry Interface 2022 R2

       Creo Elements/Direct Modeling Geometry Interface 2022 R2

       Creo Parametric Geometry Interface 2022 R2 

       Inventor Geometry Interface 2022 R2

       JTOpen Geometry Interface 2022 R2  

       NX Geometry Interface 2022 R2  

       Parasolid Geometry Interface  2022 R2  

       Solid Edge Geometry Interface 2022 R2  

       SOLIDWORKS Geometry Interface 2022 R2  

       

       

                *****  MAPDL COMMAND LINE ARGUMENTS  *****

        BATCH MODE REQUESTED (-b)    = NOLIST

        INPUT FILE COPY MODE (-c)    = COPY

        DISTRIBUTED MEMORY PARALLEL REQUESTED

            15 PARALLEL PROCESSES REQUESTED WITH SINGLE THREAD PER PROCESS (FORCED)

          TOTAL OF    15 CORES REQUESTED

        INPUT FILE NAME              = E:\Test_Beam_1.63MW_Sig5mm\_ProjectScratch\Scr13EA\dummy.dat

        OUTPUT FILE NAME             = E:\Test_Beam_1.63MW_Sig5mm\_ProjectScratch\Scr13EA\solve.out

        START-UP FILE MODE           = NOREAD

        STOP FILE MODE               = NOREAD

        GPU ACCELERATOR OPTION REQUESTED

           1 GPU ACCELERATOR DEVICES REQUESTED

       

       RELEASE= 2022 R2              BUILD= 22.2      UP20220516   VERSION=WINDOWS x64

       CURRENT JOBNAME=file0  13:16:55  DEC 07, 2024 CP=      0.156

       

       

       PARAMETER _DS_PROGRESS =     999.0000000   

       

       /INPUT FILE= ds.dat  LINE=       0

       

       

       

       *** NOTE ***                            CP =       3.406   TIME= 13:17:00

       The /CONFIG,NOELDB command is not valid in a distributed memory        

       parallel solution.  Command is ignored.                                

       

       *GET  _WALLSTRT  FROM  ACTI  ITEM=TIME WALL  VALUE=  13.2833333   

       

       TITLE=

       Test_Radiation--Transient Thermal (B5)                                       

       

        ACT Extensions:

            LSDYNA, 2022.2

            5f463412-bd3e-484b-87e7-cbc0a665e474, wbex

       /COM,     ANSYSMotion, 2022.2

            20180725-3f81-49eb-9f31-41364844c769, wbex

       

       

       SET PARAMETER DIMENSIONS ON  _WB_PROJECTSCRATCH_DIR

        TYPE=STRI  DIMENSIONS=      248        1        1

       

       PARAMETER _WB_PROJECTSCRATCH_DIR(1) = E:\Test_Beam_1.63MW_Sig5mm\_ProjectScratch\Scr13EA\

       

       SET PARAMETER DIMENSIONS ON  _WB_SOLVERFILES_DIR

        TYPE=STRI  DIMENSIONS=      248        1        1

       

       PARAMETER _WB_SOLVERFILES_DIR(1) = E:\Test_Beam_1.63MW_Sig5mm\Test_Radiation_files\dp0\SYS-29\MECH\

       

       SET PARAMETER DIMENSIONS ON  _WB_USERFILES_DIR

        TYPE=STRI  DIMENSIONS=      248        1        1

       

       PARAMETER _WB_USERFILES_DIR(1) = E:\Test_Beam_1.63MW_Sig5mm\Test_Radiation_files\user_files\

       --- Data in consistent NMM units. See Solving Units in the help system for more

       

       MPA UNITS SPECIFIED FOR INTERNAL   

        LENGTH      = MILLIMETERS (mm)

        MASS        = TONNE (Mg)

        TIME        = SECONDS (sec)

        TEMPERATURE = CELSIUS (C)

        TOFFSET     = 273.0

        FORCE       = NEWTON (N)

        HEAT        = MILLIJOULES (mJ)

       

       INPUT  UNITS ARE ALSO SET TO MPA

       

       *** MAPDL - ENGINEERING ANALYSIS SYSTEM  RELEASE 2022 R2          22.2     ***

       Ansys Mechanical Enterprise Academic Research    

       00000000  VERSION=WINDOWS x64   13:17:00  DEC 07, 2024 CP=      3.406

       

       Test_Radiation--Transient Thermal (B5)                                       

       

       

       

                ***** MAPDL ANALYSIS DEFINITION (PREP7) *****

       *********** Nodes for the whole assembly ***********

       *********** Elements for Body 1 "cover1" ***********

       *********** Elements for Body 2 "cover2" ***********

       *********** Elements for Body 3 "cover3" ***********

       *********** Elements for Body 4 "cover4" ***********

       *********** Elements for Body 5 "End1" ***********

       *********** Elements for Body 6 "End2" ***********

       *********** Elements for Body 7 "SYS-29\400x400x5\Solid" ***********

       *********** Send User Defined Coordinate System(s) ***********

       *********** Send Materials ***********

       *********** Create Contact "Contact Region" ***********

                   Real Constant Set For Above Contact Is 9 & 8

       *********** Create Contact "Contact Region 2" ***********

                   Real Constant Set For Above Contact Is 11 & 10

       *********** Create Contact "Contact Region 3" ***********

                   Real Constant Set For Above Contact Is 13 & 12

       *********** Create Contact "Contact Region 4" ***********

                   Real Constant Set For Above Contact Is 15 & 14

       *********** Send Named Selection as Node Component ***********

       *********** Send Named Selection as Node Component ***********

       *********** Send Named Selection as Node Component ***********

       *********** Send Named Selection as Element Component ***********

       *********** Send Named Selection as Node Component ***********

       *********** Send Named Selection as Node Component ***********

       *********** Send Named Selection as Node Component ***********

       *********** Define Temperature Constraint ***********

       *********** Define Temperature Constraint ***********

       *********** Create "ToSurface(Closed)" Radiation ***********

       *********** Create "ToSurface(Closed)" Radiation ***********

       ***************** Define Uniform Initial temperature ***************

       

       

       ***** ROUTINE COMPLETED *****  CP =        10.750

       

       

       --- Number of total nodes = 351363

       --- Number of contact elements = 960

       --- Number of spring elements = 0

       --- Number of bearing elements = 0

       --- Number of solid elements = 60438

       --- Number of condensed parts = 0

       --- Number of total elements = 61398

       

       *GET  _WALLBSOL  FROM  ACTI  ITEM=TIME WALL  VALUE=  13.2836111   

       ****************************************************************************

       *************************    SOLUTION       ********************************

       ****************************************************************************

       

       *****  MAPDL SOLUTION ROUTINE  *****

       

       

       PERFORM A TRANSIENT ANALYSIS

        THIS WILL BE A NEW ANALYSIS

       

       STEP BOUNDARY CONDITION KEY= 1

       

       CONTACT INFORMATION PRINTOUT LEVEL       1

       

       DO NOT SAVE ANY RESTART FILES AT ALL

       

       DO NOT COMBINE ELEMENT MATRIX FILES (.emat) AFTER DISTRIBUTED PARALLEL SOLUTION

       

       DO NOT COMBINE ELEMENT SAVE DATA FILES (.esav) AFTER DISTRIBUTED PARALLEL SOLUTION

       

       Use Full Nonlinear Thermal Transient Solution

       

       NLHIST: ADDED NODAL RESULTS HISTORY FOR:

             NAME = MAX_TEMP                       

        ITEM/COMP = TEMPMAX

             NODE =         0

       

       NLHIST: ADDED NODAL RESULTS HISTORY FOR:

             NAME = MIN_TEMP                       

        ITEM/COMP = TEMPMIN

             NODE =         0

       ********* Initial Time Increment Check And Fourier Modulus *********

        Specified Initial Time Increment: 0.05

        Estimated Increment Needed, le*le/alpha, Body 1: 13.957

        Estimated Increment Needed, le*le/alpha, Body 2: 13.957

        Estimated Increment Needed, le*le/alpha, Body 3: 13.957

        Estimated Increment Needed, le*le/alpha, Body 4: 13.957

        Estimated Increment Needed, le*le/alpha, Body 5: 9.39451

        Estimated Increment Needed, le*le/alpha, Body 6: 9.39453

        Estimated Increment Needed, le*le/alpha, Body 7: 0.481464

       ****************************************************

       ******************* SOLVE FOR LS 1 OF 1 ****************

       

       SPECIFIED CONSTRAINT TEMP FOR PICKED NODES

       SET ACCORDING TO TABLE PARAMETER = _LOADVARI939

       

       SPECIFIED CONSTRAINT TEMP FOR PICKED NODES

       REAL=  20.0000000       IMAG=  0.00000000   

       

       SELECT      COMPONENT _CM617                                                                                                                                                                                                                                                         

       

       SELECT      ALL ELEMENTS HAVING ANY NODE IN NODAL SET.

       

            13748 ELEMENTS (OF      61398  DEFINED) SELECTED FROM

          43202 SELECTED NODES BY  ESLN COMMAND.

       

       GENERATE SURFACE LOAD RDSF ON SURFACE DEFINED BY ALL SELECTED NODES

       EMISSIVITY =   1.00           ENCLOSURE NUMBER =        1.

       

       NUMBER OF RDSF ELEMENT FACE LOADS STORED =      14400

       

       ALL SELECT   FOR ITEM=NODE COMPONENT=   

        IN RANGE         1 TO     351363 STEP          1

       

           351363  NODES (OF     351363  DEFINED) SELECTED BY NSEL  COMMAND.

       

       ENCLOSURE=  1 VIEWFACTOR SCALE METHOD =  1

                     ITERATIONS =  100

                     TOLERANCE = 1.000000047E-03

       

       SELECT      COMPONENT _CM676                                                                                                                                                                                                                                                         

       

       SELECT      ALL ELEMENTS HAVING ANY NODE IN NODAL SET.

       

            29398 ELEMENTS (OF      61398  DEFINED) SELECTED FROM

          84844 SELECTED NODES BY  ESLN COMMAND.

       

       GENERATE SURFACE LOAD RDSF ON SURFACE DEFINED BY ALL SELECTED NODES

       EMISSIVITY =  0.500           ENCLOSURE NUMBER =        1.

       

       NUMBER OF RDSF ELEMENT FACE LOADS STORED =      27966

       

       ALL SELECT   FOR ITEM=NODE COMPONENT=   

        IN RANGE         1 TO     351363 STEP          1

       

           351363  NODES (OF     351363  DEFINED) SELECTED BY NSEL  COMMAND.

       

       ALL SELECT   FOR ITEM=NODE COMPONENT=   

        IN RANGE         1 TO     351363 STEP          1

       

           351363  NODES (OF     351363  DEFINED) SELECTED BY NSEL  COMMAND.

       

       ALL SELECT   FOR ITEM=ELEM COMPONENT=   

        IN RANGE         1 TO     134026 STEP          1

       

            61398  ELEMENTS (OF      61398  DEFINED) SELECTED BY  ESEL  COMMAND.

       

       PRINTOUT RESUMED BY /GOP

       

       DO NOT USE AUTOMATIC TIME STEPPING THIS LOAD STEP

       

       USE       2 SUBSTEPS INITIALLY THIS LOAD STEP FOR ALL  DEGREES OF FREEDOM

       FOR AUTOMATIC TIME STEPPING:

         USE      2 SUBSTEPS AS A MAXIMUM

         USE      2 SUBSTEPS AS A MINIMUM

       

       TIME= 0.10000   

       

       INCLUDE TRANSIENT EFFECTS FOR  ALL DEGREES OF FREEDOM THIS LOAD STEP

       

       ERASE THE CURRENT DATABASE OUTPUT CONTROL TABLE.

       

       

       WRITE ALL  ITEMS TO THE DATABASE WITH A FREQUENCY OF NONE

         FOR ALL APPLICABLE ENTITIES

       

       WRITE NSOL ITEMS TO THE DATABASE WITH A FREQUENCY OF ALL

         FOR ALL APPLICABLE ENTITIES

       

       WRITE RSOL ITEMS TO THE DATABASE WITH A FREQUENCY OF ALL

         FOR ALL APPLICABLE ENTITIES

       

       WRITE EANG ITEMS TO THE DATABASE WITH A FREQUENCY OF ALL

         FOR ALL APPLICABLE ENTITIES

       

       WRITE VENG ITEMS TO THE DATABASE WITH A FREQUENCY OF ALL

         FOR ALL APPLICABLE ENTITIES

       

       WRITE FFLU ITEMS TO THE DATABASE WITH A FREQUENCY OF ALL

         FOR ALL APPLICABLE ENTITIES

       

       WRITE CONT ITEMS TO THE DATABASE WITH A FREQUENCY OF ALL

         FOR ALL APPLICABLE ENTITIES

       

       WRITE MISC ITEMS TO THE DATABASE WITH A FREQUENCY OF ALL

         FOR ALL APPLICABLE ENTITIES

       

       CONVERGENCE ON HEAT BASED ON THE NORM OF THE N-R LOAD

         WITH A TOLERANCE OF 0.1000E-03 AND A MINIMUM REFERENCE VALUE OF 0.1000E-02

         USING THE L2 NORM (CHECK THE SRSS VALUE)

       

       UNDER RELAXATION FOR RADIATION FLUX=   0.10000

       

       TOLERENCE FOR RADIOSITY FLUX=   0.00001

       

       USING JACOBI ITERATIVE SOLVER FOR RADIOSITY SOLUTION

       FOR 3D ENCLOSURES.

       USING GSEIDEL ITERATIVE SOLVER FOR RADIOSITY SOLUTION

       FOR 2D ENCLOSURES.

       

       MAXIMUM NUMBER OF ITERATIONS=  1000

       TOLERENCE FOR ITERATIVE SOLVER=   0.00010

       RELAXATION FOR ITERATIVE SOLVER=   0.10000

       

       HEMICUBE RESOLUTION=  100

       

       MIN NORMALIZED DIST BEFORE AUTO SUBDIVIDE= 1.000000000E-09

       

       SELECT      COMPONENT _CM617                                                                                                                                                                                                                                                         

       

       SELECT      ALL ELEMENTS HAVING ANY NODE IN NODAL SET.

       

            13748 ELEMENTS (OF      61398  DEFINED) SELECTED FROM

          43202 SELECTED NODES BY  ESLN COMMAND.

       

      BEFORE SYMMETRIZATION:

       

      NUMBER OF RADIATION NODES CREATED =      14402

       

      NUMBER OF RADIOSITY SURFACE ELEMENTS CREATED =      14400

       

      AFTER SYMMETRIZATION:

       

      FULL NUMBER OF RADIATION NODES CREATED =      14402

       

      FULL NUMBER OF RADIOSITY SURFACE ELEMENTS CREATED =     14400

       

       ALL SELECT   FOR ITEM=NODE COMPONENT=   

        IN RANGE         1 TO     365765 STEP          1

       

           365765  NODES (OF     365765  DEFINED) SELECTED BY NSEL  COMMAND.

       

       ALL SELECT   FOR ITEM=ELEM COMPONENT=   

        IN RANGE         1 TO     148426 STEP          1

       

            75798  ELEMENTS (OF      75798  DEFINED) SELECTED BY  ESEL  COMMAND.

       

       SELECT      COMPONENT _CM676                                                                                                                                                                                                                                                         

       

       SELECT      ALL ELEMENTS HAVING ANY NODE IN NODAL SET.

       

            29398 ELEMENTS (OF      75798  DEFINED) SELECTED FROM

          84844 SELECTED NODES BY  ESLN COMMAND.

       

      BEFORE SYMMETRIZATION:

       

      NUMBER OF RADIATION NODES CREATED =      28440

       

      NUMBER OF RADIOSITY SURFACE ELEMENTS CREATED =      27966

       

      AFTER SYMMETRIZATION:

       

      FULL NUMBER OF RADIATION NODES CREATED =      28440

       

      FULL NUMBER OF RADIOSITY SURFACE ELEMENTS CREATED =     27966

       

       ALL SELECT   FOR ITEM=NODE COMPONENT=   

        IN RANGE         1 TO     394205 STEP          1

       

           394205  NODES (OF     394205  DEFINED) SELECTED BY NSEL  COMMAND.

       

       ALL SELECT   FOR ITEM=ELEM COMPONENT=   

        IN RANGE         1 TO     176392 STEP          1

       

           103764  ELEMENTS (OF     103764  DEFINED) SELECTED BY  ESEL  COMMAND.

       

       *GET  ANSINTER_  FROM  ACTI  ITEM=INT        VALUE=  0.00000000   

       

       *IF  ANSINTER_                         ( =   0.00000     )  NE 

            0                                 ( =   0.00000     )  THEN   

       

       *ENDIF

       

       *** NOTE ***                            CP =      16.109   TIME= 13:17:01

       The automatic domain decomposition logic has selected the MESH domain  

       decomposition method with 15 processes per solution.                   

       

       *****  MAPDL SOLVE    COMMAND  *****

       

       CALCULATING VIEW FACTORS USING HEMICUBE METHOD

       

       RETRIEVED    1 ENCLOSURES.

       TOTAL OF    42366 DEFINED ELEMENT FACES.

       

       # ENCLOSURE =     1 # SURFACES = 42366 # NODES = 42842

       

       

         ******************************************************************************

                      V I E W F A C T O R    S M O O T H I N G

         ******************************************************************************

       

          Smoothing of viewfactor matrix...

            Max iterations = 100

            Tolerance      = 0.001

            row sum total should be                   = 42366.0000

            row sum total before forcing symmetry     = 42365.9937

            row sum total after forcing symmetry      = 42365.9937

            row sum total after smoothing             = 42365.9997

            Raw rowsum error min                      = -4.5061e-05

            Raw rowsum error max                      =  8.3447e-07

            Raw rowsum error mean                     = -1.4800e-07 +/- 4.5422e-07

            Symmetric rowsum error min                = -4.5061e-05

            Symmetric rowsum error max                =  8.3447e-07

            Symmetric rowsum error mean               = -1.4800e-07 +/- 5.8700e-08

            Smoothed rowsum error min                 = -2.3842e-07

            Smoothed rowsum error max                 =  4.7684e-07

            Smoothed rowsum error mean                = -7.6563e-09 +/- 1.4846e-10

            number of iterations to smooth            = 1

       

       

         ******************************************************************************

              E N D    O F    V I E W F A C T O R    S M O O T H I N G

         ******************************************************************************

       

       

       

      TIME OF CALCULATION FOR THIS ENCLOSURE =    28.7812   

       

       CHECKING VIEW FACTOR SUM

       

       VIEW FACTOR CALCULATION COMPLETE

       

       WRITING VIEW FACTORS TO FILE file0.vf                                                                                                                                                                                                                                                           

       VIEW FACTORS WERE WRITTEN TO FILE file0.vf                                                                                                                                                                                                                                                           

       

       *** WARNING ***                         CP =      58.953   TIME= 13:17:41

       Some radiation enclosures have viewfactor scaling.  Use VFSM,STAT      

       command to check the status.  Also note that scaling is ignored if the 

       viewfactor sum is <= 0.0.                                              

       

       *** WARNING ***                         CP =      59.047   TIME= 13:17:42

       Element shape checking is currently inactive.  Issue SHPP,ON or        

       SHPP,WARN to reactivate, if desired.                                   

       

       *** NOTE ***                            CP =      59.484   TIME= 13:17:42

       The model data was checked and warning messages were found.            

        Please review output or errors file (                                 

       E:\Test_Beam_1.63MW_Sig5mm\_ProjectScratch\Scr13EA\file0.err ) for     

       these warning messages.                                                

       

       *** MAPDL - ENGINEERING ANALYSIS SYSTEM  RELEASE 2022 R2          22.2     ***

       Ansys Mechanical Enterprise Academic Research    

       00000000  VERSION=WINDOWS x64   13:17:42  DEC 07, 2024 CP=     59.594

       

       Test_Radiation--Transient Thermal (B5)                                       

       

       

       

                             S O L U T I O N   O P T I O N S

       

         PROBLEM DIMENSIONALITY. . . . . . . . . . . . .3-D                 

         DEGREES OF FREEDOM. . . . . . TEMP

         ANALYSIS TYPE . . . . . . . . . . . . . . . . .TRANSIENT           

            SOLUTION METHOD. . . . . . . . . . . . . . .FULL                

         OFFSET TEMPERATURE FROM ABSOLUTE ZERO . . . . .  273.15   

         GLOBALLY ASSEMBLED MATRIX . . . . . . . . . . .SYMMETRIC 

       

       *** NOTE ***                            CP =      59.812   TIME= 13:17:42

       This nonlinear analysis defaults to using the full Newton-Raphson      

       solution procedure.  This can be modified using the NROPT command.     

       

       *** NOTE ***                            CP =      59.812   TIME= 13:17:42

       The conditions for direct assembly have been met.  No .emat or .erot   

       files will be produced.                                                

       

       *** NOTE ***                            CP =      60.891   TIME= 13:17:42

       Symmetric Deformable- deformable contact pair identified by real       

       constant set 8 and contact element type 8 has been set up.  The        

       companion pair has real constant set ID 9.  Both pairs should have the 

       same behavior.                                                         

       ANSYS will keep the current pair and deactivate its companion pair,    

       resulting in asymmetric contact.                                       

       Pure thermal contact is activated.

       The emissivity is defined through the material property.

       Thermal convection coefficient, environment temperature, and

        heat flux are defined using the SFE command.

       Target temperature is used for convection/radiation calculation

        for near field contact.

       Small sliding logic is assumed

       Contact detection at: Gauss integration point

       Average contact surface length                13.216   

       Average contact pair depth                    14.814   

       Average target surface length                 14.984   

       Default pinball region factor PINB           0.25000   

       The resulting pinball region                  3.7036   

       Initial penetration/gap is excluded.

       Bonded contact (always) is defined.

       Thermal contact conductance coef. TCC         255.64   

       Heat radiation is excluded.

       

       *** NOTE ***                            CP =      60.891   TIME= 13:17:42

       Max.  Initial penetration 1.704990738E-05 was detected between contact 

       element 133149 and target element 133270.                              

       You may move entire target surface by : x= 1.685318E-05, y=            

       2.582569568E-06, z= 4.680688417E-19,to reduce initial penetration.     

       ****************************************

       

       

       *** NOTE ***                            CP =      60.891   TIME= 13:17:42

       Symmetric Deformable- deformable contact pair identified by real       

       constant set 9 and contact element type 8 has been set up.  The        

       companion pair has real constant set ID 8.  Both pairs should have the 

       same behavior.                                                         

       ANSYS will deactivate the current pair and keep its companion pair,    

       resulting in asymmetric contact.                                       

       Pure thermal contact is activated.

       The emissivity is defined through the material property.

       Thermal convection coefficient, environment temperature, and

        heat flux are defined using the SFE command.

       Target temperature is used for convection/radiation calculation

        for near field contact.

       Small sliding logic is assumed

       Contact detection at: Gauss integration point

       Average contact surface length                13.295   

       Average contact pair depth                    22.753   

       Average target surface length                 14.984   

       Default pinball region factor PINB           0.25000   

       The resulting pinball region                  5.6884   

       Initial penetration/gap is excluded.

       Bonded contact (always) is defined.

       Thermal contact conductance coef. TCC         255.64   

       Heat radiation is excluded.

       

       *** NOTE ***                            CP =      60.891   TIME= 13:17:42

       Max.  Initial penetration 1.705060237E-05 was detected between contact 

       element 133209 and target element 133090.                              

       ****************************************

       

       

       *** NOTE ***                            CP =      60.891   TIME= 13:17:42

       Symmetric Deformable- deformable contact pair identified by real       

       constant set 10 and contact element type 10 has been set up.  The      

       companion pair has real constant set ID 11.  Both pairs should have    

       the same behavior.                                                     

       ANSYS will keep the current pair and deactivate its companion pair,    

       resulting in asymmetric contact.                                       

       Pure thermal contact is activated.

       The emissivity is defined through the material property.

       Thermal convection coefficient, environment temperature, and

        heat flux are defined using the SFE command.

       Target temperature is used for convection/radiation calculation

        for near field contact.

       Small sliding logic is assumed

       Contact detection at: Gauss integration point

       Average contact surface length                13.216   

       Average contact pair depth                    14.814   

       Average target surface length                 14.984   

       Default pinball region factor PINB           0.25000   

       The resulting pinball region                  3.7036   

       Initial penetration/gap is excluded.

       Bonded contact (always) is defined.

       Thermal contact conductance coef. TCC         255.64   

       Heat radiation is excluded.

       

       *** NOTE ***                            CP =      60.891   TIME= 13:17:42

       Max.  Initial penetration 1.703900632E-05 was detected between contact 

       element 133412 and target element 133534.                              

       You may move entire target surface by : x= 7.33329464E-06, y=          

       -1.538019916E-05, z= 8.119307397E-20,to reduce initial penetration.    

       ****************************************

       

       

       *** NOTE ***                            CP =      60.891   TIME= 13:17:42

       Symmetric Deformable- deformable contact pair identified by real       

       constant set 11 and contact element type 10 has been set up.  The      

       companion pair has real constant set ID 10.  Both pairs should have    

       the same behavior.                                                     

       ANSYS will deactivate the current pair and keep its companion pair,    

       resulting in asymmetric contact.                                       

       Pure thermal contact is activated.

       The emissivity is defined through the material property.

       Thermal convection coefficient, environment temperature, and

        heat flux are defined using the SFE command.

       Target temperature is used for convection/radiation calculation

        for near field contact.

       Small sliding logic is assumed

       Contact detection at: Gauss integration point

       Average contact surface length                17.922   

       Average contact pair depth                    22.753   

       Average target surface length                 14.984   

       Default pinball region factor PINB           0.25000   

       The resulting pinball region                  5.6884   

       Initial penetration/gap is excluded.

       Bonded contact (always) is defined.

       Thermal contact conductance coef. TCC         255.64   

       Heat radiation is excluded.

       

       *** NOTE ***                            CP =      60.891   TIME= 13:17:42

       Max.  Initial penetration 1.703995895E-05 was detected between contact 

       element 133473 and target element 133353.                              

       ****************************************

       

       

       *** NOTE ***                            CP =      60.891   TIME= 13:17:42

       Symmetric Deformable- deformable contact pair identified by real       

       constant set 12 and contact element type 12 has been set up.  The      

       companion pair has real constant set ID 13.  Both pairs should have    

       the same behavior.                                                     

       ANSYS will keep the current pair and deactivate its companion pair,    

       resulting in asymmetric contact.                                       

       Pure thermal contact is activated.

       The emissivity is defined through the material property.

       Thermal convection coefficient, environment temperature, and

        heat flux are defined using the SFE command.

       Target temperature is used for convection/radiation calculation

        for near field contact.

       Small sliding logic is assumed

       Contact detection at: Gauss integration point

       Average contact surface length                13.216   

       Average contact pair depth                    14.814   

       Average target surface length                 14.984   

       Default pinball region factor PINB           0.25000   

       The resulting pinball region                  3.7036   

       Initial penetration/gap is excluded.

       Bonded contact (always) is defined.

       Thermal contact conductance coef. TCC         255.64   

       Heat radiation is excluded.

       

       *** NOTE ***                            CP =      60.891   TIME= 13:17:42

       Max.  Initial penetration 1.705299849E-05 was detected between contact 

       element 133629 and target element 133749.                              

       You may move entire target surface by : x= -2.583037783E-06, y=        

       1.685623545E-05, z= 4.453532888E-19,to reduce initial penetration.     

       ****************************************

       

       

       *** NOTE ***                            CP =      60.891   TIME= 13:17:42

       Symmetric Deformable- deformable contact pair identified by real       

       constant set 13 and contact element type 12 has been set up.  The      

       companion pair has real constant set ID 12.  Both pairs should have    

       the same behavior.                                                     

       ANSYS will deactivate the current pair and keep its companion pair,    

       resulting in asymmetric contact.                                       

       Pure thermal contact is activated.

       The emissivity is defined through the material property.

       Thermal convection coefficient, environment temperature, and

        heat flux are defined using the SFE command.

       Target temperature is used for convection/radiation calculation

        for near field contact.

       Small sliding logic is assumed

       Contact detection at: Gauss integration point

       Average contact surface length                13.295   

       Average contact pair depth                    22.753   

       Average target surface length                 14.984   

       Default pinball region factor PINB           0.25000   

       The resulting pinball region                  5.6884   

       Initial penetration/gap is excluded.

       Bonded contact (always) is defined.

       Thermal contact conductance coef. TCC         255.64   

       Heat radiation is excluded.

       

       *** NOTE ***                            CP =      60.891   TIME= 13:17:42

       Max.  Initial penetration 1.705332427E-05 was detected between contact 

       element 133688 and target element 133570.                              

       ****************************************

       

       

       *** NOTE ***                            CP =      60.891   TIME= 13:17:42

       Symmetric Deformable- deformable contact pair identified by real       

       constant set 14 and contact element type 14 has been set up.  The      

       companion pair has real constant set ID 15.  Both pairs should have    

       the same behavior.                                                     

       ANSYS will keep the current pair and deactivate its companion pair,    

       resulting in asymmetric contact.                                       

       Pure thermal contact is activated.

       The emissivity is defined through the material property.

       Thermal convection coefficient, environment temperature, and

        heat flux are defined using the SFE command.

       Target temperature is used for convection/radiation calculation

        for near field contact.

       Small sliding logic is assumed

       Contact detection at: Gauss integration point

       Average contact surface length                13.216   

       Average contact pair depth                    14.814   

       Average target surface length                 14.984   

       Default pinball region factor PINB           0.25000   

       The resulting pinball region                  3.7036   

       Initial penetration/gap is excluded.

       Bonded contact (always) is defined.

       Thermal contact conductance coef. TCC         255.64   

       Heat radiation is excluded.

       

       *** NOTE ***                            CP =      60.891   TIME= 13:17:42

       Max.  Initial penetration 1.70139613E-05 was detected between contact  

       element 133892 and target element 134013.                              

       You may move entire target surface by : x= -1.535759236E-05, y=        

       -7.322515696E-06, z= 3.647501262E-20,to reduce initial penetration.    

       ****************************************

       

       

       *** NOTE ***                            CP =      60.891   TIME= 13:17:42

       Symmetric Deformable- deformable contact pair identified by real       

       constant set 15 and contact element type 14 has been set up.  The      

       companion pair has real constant set ID 14.  Both pairs should have    

       the same behavior.                                                     

       ANSYS will deactivate the current pair and keep its companion pair,    

       resulting in asymmetric contact.                                       

       Pure thermal contact is activated.

       The emissivity is defined through the material property.

       Thermal convection coefficient, environment temperature, and

        heat flux are defined using the SFE command.

       Target temperature is used for convection/radiation calculation

        for near field contact.

       Small sliding logic is assumed

       Contact detection at: Gauss integration point

       Average contact surface length                17.922   

       Average contact pair depth                    22.753   

       Average target surface length                 14.984   

       Default pinball region factor PINB           0.25000   

       The resulting pinball region                  5.6884   

       Initial penetration/gap is excluded.

       Bonded contact (always) is defined.

       Thermal contact conductance coef. TCC         255.64   

       Heat radiation is excluded.

       

       *** NOTE ***                            CP =      60.891   TIME= 13:17:42

       Max.  Initial penetration 1.701500617E-05 was detected between contact 

       element 133952 and target element 133833.                              

       ****************************************

       

       

       

       

       

       

           D I S T R I B U T E D   D O M A I N   D E C O M P O S E R

       

        ...Number of elements: 103764

        ...Number of nodes:    394205

        ...Decompose to 15 CPU domains

        ...Element load balance ratio =     1.101

       

       

                            L O A D   S T E P   O P T I O N S

       

         LOAD STEP NUMBER. . . . . . . . . . . . . . . .     1

         TIME AT END OF THE LOAD STEP. . . . . . . . . . 0.10000   

         NUMBER OF SUBSTEPS. . . . . . . . . . . . . . .     2

         MAXIMUM NUMBER OF EQUILIBRIUM ITERATIONS. . . .    15

         STEP CHANGE BOUNDARY CONDITIONS . . . . . . . .   YES

         TRANSIENT (INERTIA) EFFECTS

            THERMAL DOFS . . . . . . . . . . . . . . . .    ON

         TRANSIENT INTEGRATION PARAMETERS

            THETA. . . . . . . . . . . . . . . . . . . .  1.0000   

            OSCILLATION LIMIT CRITERION. . . . . . . . . 0.50000   

            TOLERANCE. . . . . . . . . . . . . . . . . .  0.0000   

         TERMINATE ANALYSIS IF NOT CONVERGED . . . . . .YES (EXIT) 

         CONVERGENCE CONTROLS

            LABEL   REFERENCE    TOLERANCE  NORM     MINREF

             HEAT    0.000       0.1000E-03   2     0.1000E-02

         PRINT OUTPUT CONTROLS . . . . . . . . . . . . .NO PRINTOUT

         DATABASE OUTPUT CONTROLS

            ITEM     FREQUENCY   COMPONENT

             ALL       NONE              

            NSOL        ALL              

            RSOL        ALL              

            EANG        ALL              

            VENG        ALL              

            FFLU        ALL              

            CONT        ALL              

            MISC        ALL              

       

       

       SOLUTION MONITORING INFO IS WRITTEN TO FILE= file.mntr                                                                                                                                                                                                                                                          

       MAXIMUM NUMBER OF EQUILIBRIUM ITERATIONS HAS BEEN MODIFIED             

        TO BE, NEQIT = 1000, BY SOLUTION CONTROL LOGIC.                       

       

       RADIOSITY SOLVER CALCULATION

       ENCLOSURE NUMBER=   1

       RADIOSITY SOLVER CONVERGED AFTER  104 ITERATIONS

       TIME OF RADIOSITY SOLVER FOR ENCLOSURE=   15.1562   

       RAD FLUX CONVERGENCE VALUE=   1.00000     CRITERION=  0.100000E-04

       

       

       

       

       

                  **** CENTER OF MASS, MASS, AND MASS MOMENTS OF INERTIA ****

       

        CALCULATIONS ASSUME ELEMENT MASS AT ELEMENT CENTROID

       

        TOTAL MASS =  0.65239   

       

                                 MOM. OF INERTIA         MOM. OF INERTIA

        CENTER OF MASS            ABOUT ORIGIN        ABOUT CENTER OF MASS

       

        XC =  -200.00          IXX =   0.2670E+06      IXX =   0.2409E+06

        YC =  -200.00          IYY =   0.2670E+06      IYY =   0.2409E+06

        ZC =  -4.9274          IZZ =   0.3405E+06      IZZ =   0.2883E+06

                               IXY =  -0.2610E+05      IXY =   0.2033E-03

                               IYZ =   -642.9          IYZ =   0.5181E-02

                               IZX =   -642.9          IZX =  -0.4760E-02

       

       

        *** MASS SUMMARY BY ELEMENT TYPE ***

       

        TYPE      MASS

           1  0.921662E-01

           2  0.921662E-01

           3  0.921662E-01

           4  0.921662E-01

           5  0.138721   

           6  0.138721   

           7  0.628000E-02

       

       Range of element maximum matrix coefficients in global coordinates

       Maximum = 7563.16915 at element 133396.                                

       Minimum = 558.91788 at element 49878.                                  

       

         *** ELEMENT MATRIX FORMULATION TIMES

           TYPE    NUMBER   ENAME      TOTAL CP  AVE CP

       

              1      3009  SOLID279      0.266   0.000088

              2      3009  SOLID279      0.234   0.000078

              3      3009  SOLID279      0.188   0.000062

              4      3009  SOLID279      0.094   0.000031

              5      8201  SOLID279      0.656   0.000080

              6      8201  SOLID279      0.641   0.000078

              7     32000  SOLID279      1.203   0.000038

              8       120  CONTA174      0.000   0.000000

              9       120  TARGE170      0.000   0.000000

             10       120  CONTA174      0.016   0.000130

             11       120  TARGE170      0.000   0.000000

             12       120  CONTA174      0.000   0.000000

             13       120  TARGE170      0.000   0.000000

             14       120  CONTA174      0.000   0.000000

             15       120  TARGE170      0.000   0.000000

             16     14400  SURF252       0.094   0.000007

             17     27966  SURF252       0.141   0.000005

       Time at end of element matrix formulation CP = 96.15625.               

           HT FLOW CONVERGENCE VALUE=   3.567      CRITERION=  0.4041E-01

       

       DISTRIBUTED SPARSE MATRIX DIRECT SOLVER.

        Number of equations =      113756,    Maximum wavefront =      1

       

       *** NOTE ***                            CP =     100.406   TIME= 13:18:17

       This solution uses the GPU accelerator capability.                     

       

        Process memory allocated for solver              =    10.236 MB

        Process memory required for in-core solution     =     9.777 MB

        Process memory required for out-of-core solution =     8.174 MB

       

        Total memory allocated for solver                =   239.611 MB

        Total memory required for in-core solution       =   230.076 MB

        Total memory required for out-of-core solution   =   176.083 MB

       

       *** NOTE ***                            CP =     100.406   TIME= 13:18:17

       The Distributed Sparse Matrix Solver is currently running in the       

       in-core memory mode.  This memory mode uses the most amount of memory  

       in order to avoid using the hard drive as much as possible, which most 

       often results in the fastest solution time.  This mode is recommended  

       if enough physical memory is present to accommodate all of the solver  

       data.                                                                  

       Distributed sparse solver maximum pivot= 59400.7117 at node 64209 TEMP.

       Distributed sparse solver minimum pivot= 2111.0024 at node 256390 TEMP.

       Distributed sparse solver minimum pivot in absolute value= 2111.0024 at

       node 256390 TEMP.                                                      

       

       *** WARNING ***                         CP =     100.516   TIME= 13:18:18

       The Distributed Sparse Matrix Solver was not able to sufficiently      

       utilize the GPU accelerator device(s) during this equation solution.   

       This can be caused by one or more factors such as: the size of the     

       system of equations being solved; using older or less powerful GPU     

       hardware relative to the CPU core(s) involved; having insufficient     

       available memory on the GPU device.  The check for GPU performance     

       terminates for the remainder of this session.                          

          EQUIL ITER   1 COMPLETED.  NEW TRIANG MATRIX.  MAX DOF INC=   1980.   

           HT FLOW CONVERGENCE VALUE=  0.9189E-08  CRITERION=   3.213     <<< CONVERGED

          >>> SOLUTION CONVERGED AFTER EQUILIBRIUM ITERATION   1

       

       RADIOSITY SOLVER CALCULATION

       ENCLOSURE NUMBER=   1

       RADIOSITY SOLVER CONVERGED AFTER  209 ITERATIONS

       TIME OF RADIOSITY SOLVER FOR ENCLOSURE=   30.1094   

       RAD FLUX CONVERGENCE VALUE=  0.999699     CRITERION=  0.100000E-04

       

           HT FLOW CONVERGENCE VALUE=  0.2924E+07  CRITERION=   746.6   

          EQUIL ITER   2 COMPLETED.  NEW TRIANG MATRIX.  MAX DOF INC=   1.536   

           HT FLOW CONVERGENCE VALUE=  0.1293E-07  CRITERION=   687.8     <<< CONVERGED

          >>> SOLUTION CONVERGED AFTER EQUILIBRIUM ITERATION   2

       

       RADIOSITY SOLVER CALCULATION

       ENCLOSURE NUMBER=   1

       RADIOSITY SOLVER CONVERGED AFTER   23 ITERATIONS

       TIME OF RADIOSITY SOLVER FOR ENCLOSURE=   3.29688   

       RAD FLUX CONVERGENCE VALUE=  0.352322E-05 CRITERION=  0.100000E-04

       

       RADIOSITY FLUX CONVERGED AFTER ITERATION=    3 SUBSTEP=    1

       

           HT FLOW CONVERGENCE VALUE=   1976.      CRITERION=   687.8   

          EQUIL ITER   3 COMPLETED.  NEW TRIANG MATRIX.  MAX DOF INC=  0.1866E-02

           HT FLOW CONVERGENCE VALUE=  0.1282E-07  CRITERION=   687.8     <<< CONVERGED

          >>> SOLUTION CONVERGED AFTER EQUILIBRIUM ITERATION   3

       

         *** ELEMENT RESULT CALCULATION TIMES

           TYPE    NUMBER   ENAME      TOTAL CP  AVE CP

       

              1      3009  SOLID279      0.250   0.000083

              2      3009  SOLID279      0.234   0.000078

              3      3009  SOLID279      0.141   0.000047

              4      3009  SOLID279      0.047   0.000016

              5      8201  SOLID279      0.531   0.000065

              6      8201  SOLID279      0.562   0.000069

              7     32000  SOLID279      0.609   0.000019

              8       120  CONTA174      0.016   0.000130

             10       120  CONTA174      0.016   0.000130

             12       120  CONTA174      0.000   0.000000

             14       120  CONTA174      0.000   0.000000

             16     14400  SURF252       0.656   0.000046

             17     27966  SURF252       0.938   0.000034

       

         *** NODAL LOAD CALCULATION TIMES

           TYPE    NUMBER   ENAME      TOTAL CP  AVE CP

       

              1      3009  SOLID279      0.031   0.000010

              2      3009  SOLID279      0.031   0.000010

              3      3009  SOLID279      0.047   0.000016

              4      3009  SOLID279      0.031   0.000010

              5      8201  SOLID279      0.047   0.000006

              6      8201  SOLID279      0.078   0.000010

              7     32000  SOLID279      0.250   0.000008

              8       120  CONTA174      0.000   0.000000

             10       120  CONTA174      0.000   0.000000

             12       120  CONTA174      0.000   0.000000

             14       120  CONTA174      0.000   0.000000

             16     14400  SURF252       0.000   0.000000

             17     27966  SURF252       0.000   0.000000

       *** LOAD STEP     1   SUBSTEP     1  COMPLETED.    CUM ITER =      3

       *** TIME =  0.500000E-01     TIME INC =  0.500000E-01

       

           HT FLOW CONVERGENCE VALUE=  0.2897E+07  CRITERION=   747.6   

          EQUIL ITER   1 COMPLETED.  NEW TRIANG MATRIX.  MAX DOF INC=   1.287   

           HT FLOW CONVERGENCE VALUE=  0.1235E-07  CRITERION=   695.1     <<< CONVERGED

          >>> SOLUTION CONVERGED AFTER EQUILIBRIUM ITERATION   1

       

       RADIOSITY SOLVER CALCULATION

       ENCLOSURE NUMBER=   1

       RADIOSITY SOLVER CONVERGED AFTER   21 ITERATIONS

       TIME OF RADIOSITY SOLVER FOR ENCLOSURE=   3.01562   

       RAD FLUX CONVERGENCE VALUE=  0.287387E-05 CRITERION=  0.100000E-04

       

       RADIOSITY FLUX CONVERGED AFTER ITERATION=    1 SUBSTEP=    2

       

           HT FLOW CONVERGENCE VALUE=   1658.      CRITERION=   695.1   

          EQUIL ITER   2 COMPLETED.  NEW TRIANG MATRIX.  MAX DOF INC=  0.1565E-02

           HT FLOW CONVERGENCE VALUE=  0.1329E-07  CRITERION=   695.1     <<< CONVERGED

          >>> SOLUTION CONVERGED AFTER EQUILIBRIUM ITERATION   2

       *** LOAD STEP     1   SUBSTEP     2  COMPLETED.    CUM ITER =      5

       *** TIME =  0.100000         TIME INC =  0.500000E-01

       

       

       *** MAPDL BINARY FILE STATISTICS

        BUFFER SIZE USED= 16384

              2.625 MB WRITTEN ON ELEMENT SAVED DATA FILE: file0.esav

              3.062 MB WRITTEN ON ASSEMBLED MATRIX FILE: file0.full

             10.750 MB WRITTEN ON RESULTS FILE: file0.rth

       *************** Write FE CONNECTORS *********

       

       WRITE OUT CONSTRAINT EQUATIONS TO FILE= file.ce                                                                                                                                                                                                                                                            

       ****************************************************

       *************** FINISHED SOLVE FOR LS 1 *************

       

       *GET  _WALLASOL  FROM  ACTI  ITEM=TIME WALL  VALUE=  13.3205556   

       

       FINISH SOLUTION PROCESSING

       

       

       ***** ROUTINE COMPLETED *****  CP =       156.156

       

       

       

       *** MAPDL - ENGINEERING ANALYSIS SYSTEM  RELEASE 2022 R2          22.2     ***

       Ansys Mechanical Enterprise Academic Research    

       00000000  VERSION=WINDOWS x64   13:19:14  DEC 07, 2024 CP=    156.156

       

       Test_Radiation--Transient Thermal (B5)                                       

       

       

       

                ***** MAPDL RESULTS INTERPRETATION (POST1) *****

       

       *** NOTE ***                            CP =     156.391   TIME= 13:19:14

       Reading results into the database (SET command) will update the current

       displacement and force boundary conditions in the database with the    

       values from the results file for that load set.  Note that any         

       subsequent solutions will use these values unless action is taken to   

       either SAVE the current values or not overwrite them (/EXIT,NOSAVE).   

       

       Set Encoding of XML File to:ISO-8859-1

       

       Set Output of XML File to:

           PARM,     ,     ,     ,     ,     ,     ,     ,     ,     ,     ,     ,

               ,     ,     ,     ,     ,     ,     ,

       

       DATABASE WRITTEN ON FILE  parm.xml                                                                                                                                                                                                                                                           

       

       EXIT THE MAPDL POST1 DATABASE PROCESSOR

       

       

       ***** ROUTINE COMPLETED *****  CP =       156.391

       

       

       

       PRINTOUT RESUMED BY /GOP

       

       *GET  _WALLDONE  FROM  ACTI  ITEM=TIME WALL  VALUE=  13.3205556   

       

       PARAMETER _PREPTIME =     1.000000000   

       

       PARAMETER _SOLVTIME =     133.0000000   

       

       PARAMETER _POSTTIME =     0.000000000   

       

       PARAMETER _TOTALTIM =     134.0000000   

       

       *GET  _DLBRATIO  FROM  ACTI  ITEM=SOLU DLBR  VALUE=  1.10090012   

       

       *GET  _COMBTIME  FROM  ACTI  ITEM=SOLU COMB  VALUE= 0.298892600   

       

       *GET  _SSMODE   FROM  ACTI  ITEM=SOLU SSMM  VALUE=  2.00000000   

       

       *GET  _NDOFS    FROM  ACTI  ITEM=SOLU NDOF  VALUE=  113756.000   

       

       /FCLEAN COMMAND REMOVING ALL LOCAL FILES

       --- Total number of nodes = 351363

       --- Total number of elements = 61398

       --- Element load balance ratio = 1.10090012

       --- Time to combine distributed files = 0.2988926

       --- Sparse memory mode = 2

       --- Number of DOF = 113756

       

       EXIT MAPDL WITHOUT SAVING DATABASE

       

       

       NUMBER OF WARNING MESSAGES ENCOUNTERED=          3

       NUMBER OF ERROR   MESSAGES ENCOUNTERED=          0

       

      +--------------------- M A P D L   S T A T I S T I C S ------------------------+

       

      Release: 2022 R2            Build: 22.2       Update: UP20220516   Platform: WINDOWS x64

      Date Run: 12/07/2024   Time: 13:19     Process ID: 454368

      Operating System: Windows 10  (Build: 19045)

       

      Processor Model: Intel(R) Core(TM) i9-14900K

       

      Compiler: Intel(R) Fortran Compiler Version 19.0.5  (Build: 20190815)

                Intel(R) C/C++ Compiler Version 19.0.5  (Build: 20190815)

                Intel(R) Math Kernel Library Version 2020.0.0 Product Build 20191125

                BLAS Library supplied by Intel(R) MKL

       

      Number of machines requested            :    1

      Total number of cores available         :   32

      Number of physical cores available      :   24

      Number of processes requested           :   15

      Number of threads per process requested :    1

      Total number of cores requested         :   15 (Distributed Memory Parallel)              

      MPI Type: INTELMPI

      MPI Version: Intel(R) MPI Library 2021.5 for Windows* OS

       

       

      Number of GPUs requested                :    1

      GPU Acceleration: NVIDIA Library Requested and Enabled

      GPU Device with ID =  0 is: NVIDIA RTX A4000

      GPU Driver Version: 12.40

      CUDA Version: 11.0

       

      Job Name: file0

      Input File: dummy.dat

       

        Core                Machine Name   Working Directory

       -----------------------------------------------------

           0                pc-thofell-2   E:\Test_Beam_1.63MW_Sig5mm\_ProjectScratch\Scr13EA

           1                pc-thofell-2   E:\Test_Beam_1.63MW_Sig5mm\_ProjectScratch\Scr13EA

           2                pc-thofell-2   E:\Test_Beam_1.63MW_Sig5mm\_ProjectScratch\Scr13EA

           3                pc-thofell-2   E:\Test_Beam_1.63MW_Sig5mm\_ProjectScratch\Scr13EA

           4                pc-thofell-2   E:\Test_Beam_1.63MW_Sig5mm\_ProjectScratch\Scr13EA

           5                pc-thofell-2   E:\Test_Beam_1.63MW_Sig5mm\_ProjectScratch\Scr13EA

           6                pc-thofell-2   E:\Test_Beam_1.63MW_Sig5mm\_ProjectScratch\Scr13EA

           7                pc-thofell-2   E:\Test_Beam_1.63MW_Sig5mm\_ProjectScratch\Scr13EA

           8                pc-thofell-2   E:\Test_Beam_1.63MW_Sig5mm\_ProjectScratch\Scr13EA

           9                pc-thofell-2   E:\Test_Beam_1.63MW_Sig5mm\_ProjectScratch\Scr13EA

          10                pc-thofell-2   E:\Test_Beam_1.63MW_Sig5mm\_ProjectScratch\Scr13EA

          11                pc-thofell-2   E:\Test_Beam_1.63MW_Sig5mm\_ProjectScratch\Scr13EA

          12                pc-thofell-2   E:\Test_Beam_1.63MW_Sig5mm\_ProjectScratch\Scr13EA

          13                pc-thofell-2   E:\Test_Beam_1.63MW_Sig5mm\_ProjectScratch\Scr13EA

          14                pc-thofell-2   E:\Test_Beam_1.63MW_Sig5mm\_ProjectScratch\Scr13EA

       

      Latency time from master to core     1 =    1.905 microseconds

      Latency time from master to core     2 =    2.263 microseconds

      Latency time from master to core     3 =    1.836 microseconds

      Latency time from master to core     4 =    1.834 microseconds

      Latency time from master to core     5 =    1.874 microseconds

      Latency time from master to core     6 =    1.939 microseconds

      Latency time from master to core     7 =    1.947 microseconds

      Latency time from master to core     8 =    3.367 microseconds

      Latency time from master to core     9 =    3.428 microseconds

      Latency time from master to core    10 =    3.533 microseconds

      Latency time from master to core    11 =    3.458 microseconds

      Latency time from master to core    12 =    3.346 microseconds

      Latency time from master to core    13 =    3.919 microseconds

      Latency time from master to core    14 =    3.417 microseconds

       

      Communication speed from master to core     1 = 14717.79 MB/sec

      Communication speed from master to core     2 = 15699.82 MB/sec

      Communication speed from master to core     3 = 16146.94 MB/sec

      Communication speed from master to core     4 = 15991.68 MB/sec

      Communication speed from master to core     5 = 16511.53 MB/sec

      Communication speed from master to core     6 = 16200.23 MB/sec

      Communication speed from master to core     7 = 15609.45 MB/sec

      Communication speed from master to core     8 = 11298.80 MB/sec

      Communication speed from master to core     9 = 11504.17 MB/sec

      Communication speed from master to core    10 = 11157.13 MB/sec

      Communication speed from master to core    11 = 10997.92 MB/sec

      Communication speed from master to core    12 = 11750.88 MB/sec

      Communication speed from master to core    13 = 11007.15 MB/sec

      Communication speed from master to core    14 = 10467.92 MB/sec

       

      Total CPU time for main thread                    :      139.9 seconds

      Total CPU time summed for all threads             :      163.8 seconds

       

      Elapsed time spent obtaining a license            :        1.1 seconds

      Elapsed time spent pre-processing model (/PREP7)  :        0.6 seconds

      Elapsed time spent solution - preprocessing       :        1.1 seconds

      Elapsed time spent computing solution             :       89.2 seconds

      Elapsed time spent solution - postprocessing      :        0.3 seconds

      Elapsed time spent post-processing model (/POST1) :        0.0 seconds

       

      Equation solver used                              :            Sparse (symmetric)

      Equation solver computational rate                :       65.7 Gflops

       

      Sum of memory used on all processes               :     4173.0 MB

      Sum of memory allocated on all processes          :    16448.0 MB

      Physical memory available                         :        192 GB

       

      Total amount of I/O written to disk               :       13.8 GB

      Total amount of I/O read from disk                :        0.3 GB

       

      +------------------ E N D   M A P D L   S T A T I S T I C S -------------------+

       

       

       *---------------------------------------------------------------------------*

       |                                                                           |

       |                               RUN COMPLETED                               |

       |                                                                           |

       |---------------------------------------------------------------------------|

       |                                                                           |

       |  Ansys MAPDL 2022 R2         Build 22.2         UP20220516    WINDOWS x64 |

       |                                                                           |

       |---------------------------------------------------------------------------|

       |                                                                           |

       | Database Requested(-db)  1024 MB    Scratch Memory Requested      1024 MB |

       | Maximum Database Used     264 MB    Maximum Scratch Memory Used    435 MB |

       |                                                                           |

       |---------------------------------------------------------------------------|

       |                                                                           |

       |        CP Time      (sec) =        163.781       Time  =  13:19:19        |

       |        Elapsed Time (sec) =        146.000       Date  =  12/07/2024      |

       |                                                                           |

       *---------------------------------------------------------------------------*

       

       

       

       

       

    • dlooman
      Ansys Employee

      It could be a bug, but you made a very big mesh when you set the element size to 1mm.  You may have hit an untrapped limit of your computer.  Are you running on a lap top with limited memory?  Do you have access to normal tech. support?

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