I forgot to say that the crash happens under Windows 7 with gmsh 2.8.0 64bit and with 2.7.1 32bit and 64bit.
Matthias
_____________________________________________
Von: Zenker, Dr. Matthias
Gesendet: Donnerstag, 11. Juli 2013 16:57
An: '[email protected]'
Cc: 'Christophe Geuzaine [[email protected]] ([email protected])'
Betreff: crash on 3D meshing (AW: Anisiotropic mesh in stacked layers)
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
< Datei: layers.geo >>
_____________________________________________
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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