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[snappyHexMesh] snappyHexMesh layers at the corner missing |
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February 11, 2014, 08:37 |
snappyHexMesh layers at the corner missing
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#1 |
Senior Member
Yuehan
Join Date: Nov 2012
Posts: 142
Rep Power: 13 |
Hi Foamers,,
I am using sHM to generate mesh, but usually at the corners the layers are missing. Could anybody tell me how to solve this problem? |
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February 11, 2014, 10:41 |
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#2 |
Senior Member
Daniel P. Combest
Join Date: Mar 2009
Location: St. Louis, USA
Posts: 621
Rep Power: 0 |
When layers are inserted into the mesh, the mesh quality is probably poor and the layers are collapsed. You could
You may want to start with the last one first....but be careful changing too many things at once to get a desired result. Good Luck! |
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February 11, 2014, 15:17 |
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#3 | |
Senior Member
Yuehan
Join Date: Nov 2012
Posts: 142
Rep Power: 13 |
Quote:
I have also found that the layers insertion in sHM is very unstable. When I have nSurfaceLayers = 10 then it seems everything is OK, but if I use 15 layers, no layer is inserted. I am totally confused. Could you provide some hints? |
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February 12, 2014, 11:32 |
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#4 |
Senior Member
Daniel P. Combest
Join Date: Mar 2009
Location: St. Louis, USA
Posts: 621
Rep Power: 0 |
My only hint is that you should slowly add more layers rather than jumping to 150 percent more than where previously successful. You can also try to create a very uniform group of cells where you want to insert layers and this may improve it. Usually, shrinking your base mesh solves many problems with snappyHexMesh. There are many adjustments you can make to the quality measurements but that can make things worse if you aren't careful.
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