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Different results from similar quality cfx and ICEM meshes

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Old   January 14, 2011, 03:25
Default Different results from similar quality cfx and ICEM meshes
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Nick
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Hi all,

I've created two meshes with the same geometry one in cfx and the other in ICEM. The mesh quality in both is nearly the same. However with the one from ICEM I get a floating point error whereas the one created in CFX converges nicely. I don't know what's the deal. Although I set the same Boundary Condition for both cases. Everthing else is exactly the same.
Both are unstructured meshes by the way.

Generally I get a lot of overflow (floating point) errors from ICEM meshes.
Should the boundary conditions be defined in ICEM or is it sufficient to do so in cfx solver *which is what I do after i import from ICEM*. Thanks for any comments in advance.
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Old   January 15, 2011, 07:34
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Glenn Horrocks
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Assuming there is no error in your ICEM mesh, then your assessment that the mesh quality is almost the same is obviously not correct.
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Old   January 16, 2011, 05:03
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Thanks for the reply. Strangely I get this overflow error message with meshes from ICEM. I don't know what I'm doing wrong. The same geometry and boundary conditions for a mesh generated by cfx mesh work fine.
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Old   January 17, 2011, 08:48
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Paulo Alexandre Costa Rocha
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Hello,

In your simulation's .out file there are mesh quality statistics. Try to compare them.

Best Regards,

Paulo Rocha
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