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Negative element volume & folded mesh in cfx 11.0

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Old   December 18, 2007, 05:27
Default Negative element volume & folded mesh in cfx 11.0
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siavash ghassemi
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hello,i am working on a 2way fsi project in cfx11.o.i use cfx method for mesh generation in both solid and fluid models,but it doesn't run completely.error messages are: 1-a negative element volume has been detected. 2-folded mesh occurred. how can i obtain a solution? thanks.
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Old   December 18, 2007, 17:20
Default Re: Negative element volume & folded mesh in cfx 1
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Glenn Horrocks
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Hi,

Look at where the mesh has folded and either remesh to stop the folding of use the mesh stiffness control to adjust the smoothing to stop the folding.

Glenn Horrocks
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Old   December 28, 2007, 14:17
Default Re: Negative element volume & folded mesh in cfx 1
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siavashghassemi
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hello, i applied a lot of changes in mesh setting but the error messages displays yet.when i decrease inlet pressure the simulation runs normally because the deformation in solid is very small.if ansys solves only FSI problems with small solid deformations or i should set a suitable mesh setting to see large defornations? thanks, s.ghassemi
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