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3D mesh contains invalid faces?

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Old   February 23, 2011, 05:07
Default 3D mesh contains invalid faces?
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Florian Wilsch
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Hey Guys,

I want to compute some kind of flowcell for a project, but there is some error that I cannot solve on my own.

The flowcell consists of 3 inner tubes and the flowcell itself aranged around the middle one of these inner tubes. The tubes themselves consist of 8 blocks each.

After I run blockMesh, the mesh was shown properly in paraView, so I run simpleFoam.

This is the error shown by simpleFoam:

This mesh contains patches of type empty but is not 1D or 2D
    by virtue of the fact that the number of faces of this
    empty patch is not divisible by the number of cells.

    From function emptyFvPatchField<Type>::updateCoeffs()
    in file fields/fvPatchFields/constraint/empty/emptyFvPatchField.C at line 150.
CheckMesh reports one invalid check too, so there must be some mistake involving the faces of the mesh? But I thought, the internal faces in the flowcell should be empty?

I attached all the logfiles and also my blockMeshDict (comments are in German, if you need the translated version, i will translate it).

Please help me to get an idea of what I made wrong.

Kind regards,

Attached Files
File Type: gz logCheckMesh.tar.gz (1.3 KB, 5 views)
File Type: gz logFoamError.tar.gz (789 Bytes, 2 views)
File Type: gz logMesh.tar.gz (820 Bytes, 2 views)
File Type: gz blockMeshDict.tar.gz (1.9 KB, 8 views)
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Old   March 28, 2011, 15:09
Usit McCarra
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Hi Florian. I'm sorry to see you haven't had any response yet. I'll try to help.

I had a look at your blockMeshDict and saw that your empty patches are in blue, I mean, as a comment. You don't have actually the empty patches declared and I think that's the mistake!

Good luck!
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