[Gmsh] Avoid mixed tetrahedra and triangles in volume mesh

[Christophe Geuzaine]

Zenker, Dr. Matthias wrote:
> Hi,
> 
> I have some problems using meshed some 3D geometries generated by gmsh 
> in the Elmer FEM software (_www.csc.fi/elmer_ 
> <file://www.csc.fi/elmer>). I have been told by one of the Elmer 
> developpers that the problem is that there were mixed tetrahedra and 
> triangles in my volume mesh, and that there should be a way to avoid this.
> 
> Question: Is there such a way in gmsh? I already tried "Optimize" and 
> "Optimize (Netgen)", but with no apparent effect.

Maybe you have internal geometrical surfaces? If you only want to save 
volume elements, define a/several "Physical Volumes".

> 
> Thank you for a hint,
> 
> Matthias
> 
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-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine