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Forum: OpenFOAM Programming & Development

July 24, 2010, 21:46

Replies: 45

Custom Boundary Condition with OpenFOAM

Views: 42,208

Posted By nishant_hull

I want to access the patchField value from the...

I want to access the patchField value from the last time (current_time - 1) and then take avergae value of the current and previous value of patchField and impose it as a boundary condition.
Is...

Forum: OpenFOAM Programming & Development

July 24, 2010, 20:19

Replies: 45

Custom Boundary Condition with OpenFOAM

Views: 42,208

Posted By nishant_hull

Thanks guys. Does any one know how to access the...

Thanks guys. Does any one know how to access the patchField from previous time step? is there any easy way to do it?

regards,

Nishant

Forum: OpenFOAM Programming & Development

June 11, 2010, 20:45

Replies: 45

Custom Boundary Condition with OpenFOAM

Views: 42,208

Posted By nishant_hull

Hi Ovie, As I am not working on interfoam...

Hi Ovie,

As I am not working on interfoam sort of solver, I think MULES implicit solver would not be useful for me?
However the last link look useful. I will try those and let you know how it...

Forum: OpenFOAM Programming & Development

June 10, 2010, 13:19

Replies: 45

Custom Boundary Condition with OpenFOAM

Views: 42,208

Posted By nishant_hull

Hi Ovie Thanks for reply. The pressure boundary...

Hi Ovie
Thanks for reply. The pressure boundary condition is as follows:

inlet
{
type inletOutlet;
inletValue uniform 1e5;
value ...

Forum: OpenFOAM Programming & Development

June 9, 2010, 13:45

Replies: 45

Custom Boundary Condition with OpenFOAM

Views: 42,208

Posted By nishant_hull

Hi Trushar, After some modifications, I am...

Hi Trushar,

After some modifications, I am getting this error:

time step continuity errors : sum local = 6.07738e-06, global = -2.00825e-07, cumulative = -1.65828e-07
#0 ...

Forum: OpenFOAM Programming & Development

June 9, 2010, 10:40

Replies: 45

Custom Boundary Condition with OpenFOAM

Views: 42,208

Posted By nishant_hull

Hi Trushar, Thanks for the reply. I always...

Hi Trushar,

Thanks for the reply. I always check for courant number in such cases of error (specialy in compressible solver) but i think courant number is well within the limit. I even tried...

Forum: OpenFOAM Programming & Development

June 8, 2010, 20:56

Replies: 45

Custom Boundary Condition with OpenFOAM

Views: 42,208

Posted By nishant_hull

Hi Trushar, I have implemented the boundary...

Hi Trushar,

I have implemented the boundary condition now but there are some problem I am having while running. After few hundred iterations in a channel test case, I am having these errors:
...

Forum: OpenFOAM Programming & Development

May 26, 2010, 08:20

Replies: 45

Custom Boundary Condition with OpenFOAM

Views: 42,208

Posted By nishant_hull

Hi Trushar, Thanks for the reply. Did you...

Hi Trushar,

Thanks for the reply. Did you use this piece of code in the createFields.H file or did you use it in the boundary condition file (like timeVaryingFvpatch.C file)?
If you have...

Forum: OpenFOAM Programming & Development

May 25, 2010, 12:32

Replies: 45

Custom Boundary Condition with OpenFOAM

Views: 42,208

Posted By nishant_hull

Hi David, I am trying to implement a forced...

Hi David,

I am trying to implement a forced boundary condition on the inlet. I have used this piece of code-

label patchI = mesh.boundaryMesh().findPatchID("inlet");
const...

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