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[mesh manipulation] ImproveMeshQuality

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Old   August 6, 2019, 08:32
Default ImproveMeshQuality
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Carlo_P
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Hey Foamers,


I did a mesh using CfMesh.
Than I tried to improve it using "ImproveMeshQuality".


In the end, I had a worst mesh.


Here you can see the checkMesh file:


before:

Max cell openness = 7.35622e-16 OK.
Max aspect ratio = 29.7317 OK.
Minimum face area = 3.92408e-13. Maximum face area = 1.47856e-07. Face area magnitudes OK.
Min volume = 1.60163e-18. Max volume = 3.43724e-11. Total volume = 3.3578e-06. Cell volumes OK.
Mesh non-orthogonality Max: 84.9321 average: 12.8083
*Number of severely non-orthogonal (> 70 degrees) faces: 309.
Non-orthogonality check OK.
<<Writing 309 non-orthogonal faces to set nonOrthoFaces
Face pyramids OK.
***Max skewness = 4.04614, 2 highly skew faces detected which may impair the quality of the results
<<Writing 2 skew faces to set skewFaces
Coupled point location match (average 0) OK.

Failed 1 mesh checks.



after:

Overall domain bounding box (-0.0244538 -0.00600789 -0.0060014) (0.268829 0.0361308 0.00600139)
Mesh has 3 geometric (non-empty/wedge) directions (1 1 1)
Mesh has 3 solution (non-empty) directions (1 1 1)
Boundary openness (-3.56984e-17 -1.29466e-16 -2.01585e-15) OK.
Max cell openness = 4.85654e-16 OK.
Max aspect ratio = 41.771 OK.
Minimum face area = 1.25284e-12. Maximum face area = 1.65683e-07. Face area magnitudes OK.
Min volume = 1.20562e-18. Max volume = 3.30891e-11. Total volume = 3.3578e-06. Cell volumes OK.
Mesh non-orthogonality Max: 79.9838 average: 18.2811
*Number of severely non-orthogonal (> 70 degrees) faces: 797.
Non-orthogonality check OK.
<<Writing 797 non-orthogonal faces to set nonOrthoFaces
Face pyramids OK.
***Max skewness = 7.31313, 6 highly skew faces detected which may impair the quality of the results
<<Writing 6 skew faces to set skewFaces
Coupled point location match (average 0) OK.

Failed 1 mesh checks.

End


Do you have any idea in waht is wrong?


Thanks a lot,
Carlo
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Old   October 11, 2019, 09:34
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Junting Chen
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I am seeing something similar - a lot more non-orthogonal faces.
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cfmesh, mesh quality, meshing 3d, orthogonal quality

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