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Forum: OpenFOAM Running, Solving & CFD

May 14, 2009, 19:08

Replies: 20

Problem with transient simulation (icoFoam)

Views: 3,686

Posted By skabilan

Hi Foamers, I get good convergence with...

Hi Foamers,

I get good convergence with pressure, but the problem is with the velocities. Is there a way to improve velocity convergence?

Regards,
Senthil

Forum: OpenFOAM Running, Solving & CFD

May 10, 2009, 13:22

Replies: 20

Problem with transient simulation (icoFoam)

Views: 3,686

Posted By skabilan

Hi Matej, Below is the output from checkMesh...

Hi Matej,

Below is the output from checkMesh and also the OpenFoam output at maximum amplitude of the sineWave.

Time = constant

Mesh stats
points: 5615
faces: ...

Forum: OpenFOAM Running, Solving & CFD

May 9, 2009, 23:30

Replies: 20

Problem with transient simulation (icoFoam)

Views: 3,686

Posted By skabilan

Hi Jose, It is a low Reynolds number...

Hi Jose,

It is a low Reynolds number simulation. The mesh is an all tetraherdal mesh. Below are my p and U files...

p file:
dimensions [0 2 -2 0 0 0 0];

internalField uniform 0;
...

Forum: OpenFOAM Running, Solving & CFD

May 9, 2009, 13:56

Replies: 20

Problem with transient simulation (icoFoam)

Views: 3,686

Posted By skabilan

Hi Jose, Thanks for the suggestion. Reducing...

Hi Jose,

Thanks for the suggestion. Reducing the relative tolerance did help bring down the residual but still the solution did not converge. Any other suggestion or tricks that I can try?
...

Forum: OpenFOAM Running, Solving & CFD

May 7, 2009, 19:24

Replies: 20

Problem with transient simulation (icoFoam)

Views: 3,686

Posted By skabilan

Problem with transient simulation (icoFoam)

Hi Foamers,

Attached are two snap shots of static pressure from a steady state case and a transient case. The pressure gradient is 0.0003 pa. simpleFoam gives me the correct results but when I...

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