Re: [Gmsh] Problem when meshing a very thin surface

Tue, 17 Feb 2009 11:01:39 -0800

Hi David,
Could you send your geo file?
Regards,
Ruth

CREVOISIER David wrote:

Good afternoon,

 

First, congratulations for the development of Gmsh, this tool has a lot a great qualities.

 

I try to mesh several very thin surfaces, structured in a network of cracks. Two large surfaces are situated on both sides to this network and communicates with it. For large cracks, the mesh is correct (so I think the file .geo is well defined, I can send the source files if needed), but for thinner cracks (40e-6 m compared to a total domain of 10e-2 m for example), I am not able to use a characteristic length in the cracks smaller than their size, Gmsh sends “segmentation fault” due to 3 identical points in qtest and crashes. The options used for meshing surface are plane, MeshAdapt+Delaunay, a very low geometry tolerance is used and other options are standard. I know this case is complicated to mesh, but would advanced options or particular strategies be able to solve this problem?

 

Thank you for your time.

 

David Crevoisier.


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-- 
Dr. Ir. Ruth V. Sabariego
University of Liege, Institut Montefiore,
Dept. of Electrical Engineering & Computer Science, 
Applied & Computational Electromagnetics (ACE),
Sart Tilman Campus, Grande Traverse, 10 (B28), B-4000 LIEGE, Belgium
phone: +32-4-3663737 -- fax: +32-4-3662910 -- http://elap.montefiore.ulg.ac.be/




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