Hi,
I have a good mesh using pave on the surface and than meshing all volumes. With this scheme I have a very ugly element :
To replace this element with a tringle I meshed the surface with the tripave scheme:
Meshing was successful but when I check the mesh with openFOAM I have a very bad quality mesh :
Checking geometry…
Overall domain bounding box (-0.007 -1.33226763e-17 0.26) (0.007 0.285 0.5399898592)
Mesh has 3 geometric (non-empty/wedge) directions (1 1 1)
Mesh has 3 solution (non-empty) directions (1 1 1)
Boundary openness (9.319180624e-17 1.436008206e-16 -7.267655569e-17) OK.
***High aspect ratio cells found, Max aspect ratio: 1.162903999e+95, number of cells 20
<<Writing 20 cells with high aspect ratio to set highAspectRatioCells
Minimum face area = 1.199921855e-07. Maximum face area = 0.0001547087056. Face area magnitudes OK.
***Zero or negative cell volume detected. Minimum negative volume: -5.767777156e-09, Number of negative volume cells: 20
<<Writing 20 zero volume cells to set zeroVolumeCells
Mesh non-orthogonality Max: 180 average: 18.54545649
*Number of severely non-orthogonal (> 70 degrees) faces: 300.
***Number of non-orthogonality errors: 28.
<<Writing 328 non-orthogonal faces to set nonOrthoFaces
***Error in face pyramids: 100 faces are incorrectly oriented.
<<Writing 72 faces with incorrect orientation to set wrongOrientedFaces
Max skewness = 2.686648019 OK.
Coupled point location match (average 0) OK.Failed 4 mesh checks.
Whereas with the pave scheme the quality is good :
Checking geometry…
Overall domain bounding box (-0.007 -1.33226763e-17 0.26) (0.007 0.285 0.5399898592)
Mesh has 3 geometric (non-empty/wedge) directions (1 1 1)
Mesh has 3 solution (non-empty) directions (1 1 1)
Boundary openness (-2.079755756e-17 1.436519272e-16 -7.270242081e-17) OK.
Max cell openness = 2.468110717e-16 OK.
Max aspect ratio = 29.9842688 OK.
Minimum face area = 2.799317799e-07. Maximum face area = 0.000139414505. Face area magnitudes OK.
Min volume = 7.450194251e-10. Max volume = 4.497283606e-07. Total volume = 0.0002238980391. Cell volumes OK.
Mesh non-orthogonality Max: 80.74558051 average: 16.47103031
*Number of severely non-orthogonal (> 70 degrees) faces: 20.
Non-orthogonality check OK.
<<Writing 20 non-orthogonal faces to set nonOrthoFaces
Face pyramids OK.
Max skewness = 0.9047841602 OK.
Coupled point location match (average 0) OK.Mesh OK.
Can you suggest me how to improve the mesh quality with tripave or how to replace to ugly element created by the pave scheme ?
Here the Cubit file :
tripave.cub5 (1.7 MB)
Thank you.
Rocco
