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Old   June 12, 2010, 04:03
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Ali Sarami
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I have solved a problem using CFX 12.0, now I want make the mesh a little finner in CFX-mesh, but each time I do it, my problem diverges as I try to solve it, i.e. the CFX-solver faces with an error after 50 timesteps.

help me with understanding why such problem occurs.

Thank you.
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Old   June 14, 2010, 19:31
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Glenn Horrocks
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Finer mesh are more numerically unstable. There are tips on convergence on the documentation, some more here http://www.cfd-online.com/Wiki/Ansys...gence_criteria
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