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August 20, 2013, 09:44 |
checkmesh failed
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#1 |
Senior Member
Join Date: Jan 2013
Posts: 134
Rep Power: 13 |
dear all,
I am simulating flow around cylinders recently. I added some rings around the cylinder which looks like the picture below. However, it seems there's something wrong with the mesh because this message bumps out when i run checkMesh: Code:
Mesh non-orthogonality Max: 180 average: 17.0344 ***Number of non-orthogonality errors: 27720. <<Writing 27720 non-orthogonal faces to set nonOrthoFaces I believe the non-orthogonality of the mesh happens in the region where the ring is placed, as is shown in the second picture. Is there any strategy of meshing to avoid this kind of problem? BTW I'm using gmsh as the mesh generator. thanks in advance! |
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August 20, 2013, 11:11 |
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#2 |
Senior Member
Eloïse
Join Date: Jul 2012
Location: Trondheim, Norway
Posts: 113
Rep Power: 13 |
Hi,
I'm not sure how you can avoid the non-orthogonal faces. But if you want to locate them, you can run the command Code:
foamToVTK -faceSet nonOrthoFaces Regards, Eloïse |
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August 21, 2013, 00:03 |
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#3 | |
Senior Member
Join Date: Jan 2013
Posts: 134
Rep Power: 13 |
Thanks for your help! !
It helped me to locate the bad meshes, although i still can not figure out where the problem is Quote:
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