I'm new to FSI and I'm trying to run a 2-way FSI model where a solid body falls with a velocity and impacts a water surface. I have set up the moving solid body in Transient Structural and the fluid domain in Fluent. Then I used System Coupling to run the simulation but I'm getting the following error:
This file may contain appended logs from a sequence of runs, with the most
recent output reported at the end of the file.
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Transcript output started: 2024-10-14 15:35:44
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+=============================================================================+
| |
| Summary of Coupling Setup |
| |
+=============================================================================+
===============================================================================
+=============================================================================+
| Coupling Participants (2) |
+=============================================================================+
| |
| Participant: Fluid Flow (Fluent) |
| Type : FLUENT |
| UpdateControls: |
| Option : ProgramControlled |
| Region: water_surface |
| Topology : Surface |
| Input Variables : displacement |
| Output Variables : force |
| Variable: displacement |
| Quantity Type : Incremental Displacement |
| Location : Node |
| Tensor Type : Vector |
| Is Extensive : False |
| Data Type : Real |
| Variable: force |
| Quantity Type : Force |
| Location : Element |
| Tensor Type : Vector |
| Is Extensive : True |
| Data Type : Real |
| |
+-----------------------------------------------------------------------------+
| |
| Participant: Transient Structural |
| Type : MAPDL |
| UpdateControls: |
| Option : ProgramControlled |
| Region: Fluid Solid Interface |
| Topology : Surface |
| Input Variables : Force |
| Output Variables : Incremental_Displacement |
| Variable: Force |
| Quantity Type : Force |
| Location : Node |
| Tensor Type : Vector |
| Is Extensive : True |
| Data Type : Real |
| Variable: Incremental_Displacement |
| Quantity Type : Incremental Displacement |
| Location : Node |
| Tensor Type : Vector |
| Is Extensive : False |
| Data Type : Real |
| |
+=============================================================================+
| Analysis Control |
+=============================================================================+
| |
| Analysis Type : Transient |
| Global Stabilization : None |
| OptimizeIfOneWay : False |
| AllowSimultaneousUpdate : False |
| PartitioningAlgorithm : SharedAllocateMachines |
| |
+=============================================================================+
| Coupling Interfaces (1) |
+=============================================================================+
| |
| Interface: interface-1 |
| Side: One |
| Coupling Participant : Fluid Flow (Fluent) |
| Region List : water_surface |
| Reference Frame : GlobalReferenceFrame |
| Instancing |
| Side: Two |
| Coupling Participant : Transient Structural |
| Region List : Fluid Solid Interface |
| Reference Frame : GlobalReferenceFrame |
| Instancing |
| Data Transfer: Data Transfer |
| Target Side : Two |
| Source Variable : force |
| Target Variable : Force |
| Mapping Type : Surface Conservative |
| Convergence Target : 1.00E-02 |
| Ramping Option : None |
| Relaxation Factor : 1.00E+00 |
| Data Transfer: Data Transfer 2 |
| Target Side : One |
| Source Variable : Incremental_Displacement |
| Target Variable : displacement |
| Unmapped Value Option : Nearest Value |
| Mapping Type : Surface Profile Preserving |
| Convergence Target : 1.00E-02 |
| Ramping Option : None |
| Relaxation Factor : 1.00E+00 |
| Mapping Control: |
| Absolute Gap Tolerance : 0.0 [m] |
| Face Alignment : ProgramControlled |
| Poor Intersection Threshold : 5.00e-01 |
| Relative Gap Tolerance : 1.00e+00 |
| Stop If Poor Intersection : True |
| |
+=============================================================================+
| Solution Control |
+=============================================================================+
| |
| Duration Option : EndTime |
| End Time : 0.05 [s] |
| Maximum Iterations : 5 |
| Minimum Iterations : 1 |
| Time Step Size : 0.005 [s] |
| |
+=============================================================================+
| Output Control |
+=============================================================================+
| |
| Output Control Option : LastStep |
| Results |
| Option : ProgramControlled |
| Type |
| Option : EnsightGold |
| Write Initial Snapshot : True |
| |
+=============================================================================+
+-----------------------------------------------------------------------------+
| Warnings were found during data model validation. |
+-----------------------------------------------------------------------------+
| Warning: Participant Fluid Flow (Fluent) (CouplingParticipant:Solution 1) |
| has the ExecutionControl 'Option' set to 'ExternallyManaged'. System |
| Coupling will not control the startup/shutdown behavior of this |
| participant. |
| Warning: Participant Transient Structural (CouplingParticipant:Solution) |
| has the ExecutionControl 'Option' set to 'ExternallyManaged'. System |
| Coupling will not control the startup/shutdown behavior of this |
| participant. |
+-----------------------------------------------------------------------------+
+-----------------------------------------------------------------------------+
| The variable locations of force and heatflow variables for all Fluent |
| participants are set to 'Element'. Make sure that this is consistent with |
| the setup within Fluent. When importing the SCI file (this includes running |
| inside Workbench), you can control the locations of these variables by |
| using the 'SYC_FLUENT_CONSNODAL' environment variable. For more |
| information, refer to System Coupling User's Guide. |
+-----------------------------------------------------------------------------+
Awaiting connections from coupling participants... done.
+=============================================================================+
| Build Information |
+-----------------------------------------------------------------------------+
| System Coupling |
| 2022 R1: Build ID: 3043b37 Build Date: 10 November 2021 08:28:57 |
| Fluid Flow (Fluent) |
| ANSYS Fluent 22.1.0, Build Time:Nov 29 2021 12:14:46 EST, Build Id:10213, |
| OS Version:win64 |
| Transient Structural |
| Mechanical APDL Release 2022 R1 Build 22.1 UP20211129 |
| DISTRIBUTED WINDOWS x64 Version |
+=============================================================================+
===============================================================================
+=============================================================================+
| |
| Analysis Initialization |
| |
+=============================================================================+
===============================================================================
+-----------------------------------------------------------------------------+
| Low-level communication error -15: Connection was closed |
+-----------------------------------------------------------------------------+
Transcript output stopped: 2024-10-14 15:35:59
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Can someone please help me out with this?
You are navigating away from the AIS Discovery experience
