Hi, now that I have successfully created a anisotropic mesh width field for my geometry, I get a crash when I do the 3D meshing. 2D meshing works without problem. I have the impression that the desired mesh width may be too small. Is this so, and what is the smallest mesh width gmsh can cope with?
Thanks for an answer, this time...
Matthias
_____________________________________________
Von: Zenker, Dr. Matthias
Gesendet: Donnerstag, 11. Juli 2013 16:41
An: '[email protected]'
Cc: 'Christophe Geuzaine [[email protected]] ([email protected])'
Betreff: AW: Anisiotropic mesh in stacked layers
Hi again,
I have got it to work, but I still don't understand why. It seems that the
fields in MathEvalAniso have to be 1/(mesh_width)^2. But why?
I have read the relevant part of the gmsh manual, but didn't find the
answer there.
A short explanation and/or a pointer to more info would be highly
appreciated.
Matthias
_____________________________________________
Von: Zenker, Dr. Matthias
Gesendet: Mittwoch, 10. Juli 2013 17:09
An: [email protected]<mailto:[email protected]>
Cc: Christophe Geuzaine [[email protected]]
([email protected]<mailto:[email protected]>)
Betreff: Anisiotropic mesh in stacked layers
Hi,
I want to mesh a geometry with layers stacked in z direction, where
each layer should have a mesh width in the xy plane, and a different one in z
direction. I have tried to combine the Box, Min and MathEval Aniso fields to
achieve this (see attachment). But the mesh widths are not as I expect, in
particular in layer 2 in z direction it should be 1/20 its height. What do I do
wrong?
How is the mesh width derived from the m11, m22 and m33 fields in
MathEvalAniso?
Thanks for some explanations and hints,
Matthias
< Datei: layers.geo >>
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Description: layers.geo
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