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Forum: OpenFOAM Meshing & Mesh Conversion

January 13, 2012, 07:18

Replies: 3

[Other] Non-convergence for smaller mesh spacings

Views: 1,534

Posted By akidess

Yes, except that in this case the limitation is...

Yes, except that in this case the limitation is not due to an explicit time integration scheme, but to maintain pressure-velocity coupling with the PISO-algorithm.

Forum: OpenFOAM Meshing & Mesh Conversion

January 13, 2012, 02:07

Replies: 3

[Other] Non-convergence for smaller mesh spacings

Views: 1,534

Posted By akidess

You have to keep an eye on the Courant number. If...

You have to keep an eye on the Courant number. If you refine your mesh without reducing the time step, you are increasing the Courant number. If it gets too large, the solution algorithm will become...

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