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Strange cells created by SnappyHexMesh

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Old   October 3, 2011, 11:46
Default Strange cells created by SnappyHexMesh
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Johan
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Hi everybody,

When I had a closer look at my mesh in paraView i found some strange looking cells, first it looked like SHM had created an isolated piece of geometry outside the cell as seen in picture 1.
When it was remeshed with the surface refinement lowered one step there was trouble with cells cutting through the stl surface instead, like in picture 2 and 3.
Does it mean that there are quality issues with the stl file?
The stl is directly exported from CATIA and visulally it looks fine in paraView, could there be problems with for example the surface normals or is there a problem in snappyHexMesh or paraview?


Thankful for all comments!
Attached Images
File Type: jpg strange cell snappy.jpg (98.4 KB, 83 views)
File Type: jpg strange cell snappy inside.jpg (99.1 KB, 69 views)
File Type: jpg strange cell snappy outside.jpg (100.6 KB, 64 views)
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Old   November 12, 2012, 08:24
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Jakub Pola
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Hello,

I'm having similar problems with my simple geometry
Meshing U-shaped cylindical pipe

Are you having FOAM Warning: Displacement .... messages during sHM process?

Best regards,
Jakub.
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Old   December 22, 2012, 08:08
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Magnos Stone
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Hi,
I am a new user of openfoam and I have the same problem with snappy mesh. Do you solve your problem? if so, please help me.
Thanks
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Old   December 22, 2012, 09:13
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Jakub Pola
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Hello,

unfortunately I did not. I'm still waiting for help.
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