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[ANSYSCOMP]

Hello everyone

I would like to simulate a fluid flow over a flat plate under a body force by using UDF code.

My problem is that the result is like a model without body force. 

Below, you find my approach.

1. Interpreted to UDF code.

2. Hooking 

2.1

    

2.2

2.3

2.4

2.5 My problem is the lack of ::libudf ( according to the UDF manual)

3. Models===> Discret phase on

4. cell Zone Condition

5. Boundary Conditions :

5.1 Inlet velocity: have I to do 1 m/s or udf ?

In fact, In UDF code I have just coded the body force without inlet velocity. 
      UDF code: x=0  bforce=0

                        x!=0 bforce (i==0)= F(x,y)

                                 bforce (i==1)=G(x,y)

Can I use 02 macros in one udf code ? : Body_Force and DPM_BC (Velocity inlet)

6. Solution Methodes

>>> Pressure-velocity coupling : simple   (Without change)

7. Solution Controls (without change)

7. Solution Initialization 

>> STANDARD INITIALIZATION

>>> COMPUTE FORM: ALL-ZONES

>>>> x-velocity 1 m/s

>>> Initialize

8. Run calculation : The programm doesn't take into account the udf code .(The result is same to model without udf) 

thanks you

[Amine Ben Hadj Ali]

which approach?

[ANSYSCOMP]

 

ANSYSCOMP posted this 3 days ago - Last edited yesterday

 

Hello everyone

I would like to simulate a fluid flow over a flat plate under a body force by using UDF code.

My problem is that the result is like a model without body force. 

Below, you find my approach.

1. Interpreted to UDF code.

2. Hooking 

2.1

    

2.2

2.3

2.4

2.5 My problem is the lack of ::libudf ( according to the UDF manual)

3. Models===> Discret phase on

4. cell Zone Condition

5. Boundary Conditions :

5.1 Inlet velocity: have I to do 1 m/s or udf ?

In fact, In UDF code I have just coded the body force without inlet velocity. 
      UDF code: x=0  bforce=0

                        x!=0 bforce (i==0)= F(x,y)

                                 bforce (i==1)=G(x,y)

Can I use 02 macros in one udf code ? : Body_Force and DPM_BC (Velocity inlet)

6. Solution Methodes

>>> Pressure-velocity coupling : simple   (Without change)

7. Solution Controls (without change)

7. Solution Initialization 

>> STANDARD INITIALIZATION

>>> COMPUTE FORM: ALL-ZONES

>>>> x-velocity 1 m/s

>>> Initialize

8. Run calculation : The programm doesn't take into account the udf code .(The result is same to model without udf) 

thanks you