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Forum: OpenFOAM

December 3, 2010, 01:05

Replies: 12

simpleFoam convergance troubles.

Views: 3,077

Posted By AlanR

The last residual plot looks a lot better. If...

The last residual plot looks a lot better. If that version keeps converging to where the initial residuals are in the 10 -6 range, I'd say you have a reasonable solution (10 -5 is probably OK).
...

Forum: OpenFOAM

December 2, 2010, 03:20

Replies: 12

simpleFoam convergance troubles.

Views: 3,077

Posted By AlanR

Jason, I would stay with the stable...

Jason,

I would stay with the stable relaxation factors. The skewed faces in your mesh could be causing problems. You really want a mesh with no errors. If you used snappyHexMesh, you can adjust...

Forum: OpenFOAM

December 1, 2010, 16:44

Replies: 12

simpleFoam convergance troubles.

Views: 3,077

Posted By AlanR

Jason, I would look at your pressure...

Jason,

I would look at your pressure boundary conditions - pressure was not converging before the crash. The standard setup for pressure is 'zeroGradient' at the inlet and 'fixedValue' 'uniform...

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