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[snappyHexMesh] snappyHexMesh small pyramid volume control

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Old   August 28, 2016, 18:18
Default snappyHexMesh small pyramid volume control
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Taeyoung Kim
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Hello,

I am making mesh using snappyHexMesh. But I have many small pyramid volume inside my mesh like below copied and pasted script. For this reason, I could not add layers in my model.

I just followed Calum Douglas's youtube movie. It is helpful though, I have some errors in my model.

When I turned off meshQulaityControls, I could see my layers. But I believe I should turn on meshQulaityControls to get high quality mesh.

Is there anyone who can share regarding this experiences? My model is attached and it seems not complex model.

Thank you
Young.

===========================================
Writing mesh to time constant
Wrote mesh in = 10.65 s.
Layers added in = 10.65 s.
Checking final mesh ...
Checking faces in error :
non-orthogonality > 65 degrees : 0
faces with face pyramid volume < 1e-13 : 533874
faces with face-decomposition tet quality < 1e-15 : 0
faces with concavity > 80 degrees : 0
faces with skewness > 4 (internal) or 20 (boundary) : 0
faces with interpolation weights (0..1) < 0.05 : 0
faces with volume ratio of neighbour cells < 0.01 : 0
faces with face twist < 0.02 : 0
faces on cells with determinant < 0.001 : 0
Finished meshing with 533874 illegal faces (concave, zero area or negative cell pyramid volume)
Finished meshing in = 46.94 s.
End
============================================
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File Type: jpg Screen Shot 2016-08-28 at 6.03.55 PM.jpg (107.2 KB, 89 views)
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Old   May 30, 2017, 01:15
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Smrutimaya Pattanaik
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I am also having similar issues

Regards,
SMRUTI
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Old   July 13, 2017, 12:07
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Quote:
Finished meshing with 533874 illegal faces (concave, zero area or negative cell pyramid volume)
There might be a problem with your model. Check and correct it before using sHM.

--
Fabien
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