[Gmsh] Avoid mixed tetrahedra and triangles in volume mesh

[Zenker, Dr. Matthias]

I have several (physical) volumes with physical surfaces in between, and
I need them to define boundary conditions. Can this be the cause of the
problem? And is there a "trick" to avoid it?

Best regards,

Matthias

> -----Original Message-----
> From: gmsh-bounces at geuz.org [mailto:gmsh-bounces at geuz.org] On 
> Behalf Of Christophe Geuzaine
> Sent: Friday, November 14, 2008 7:22 PM
> To: Zenker, Dr. Matthias
> Cc: gmsh at geuz.org
> Subject: Re: [Gmsh] Avoid mixed tetrahedra and triangles in 
> volume mesh
> 
> 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
> > 
> > ----------------------------------------------------------------
> > ERBE Elektromedizin GmbH
> > Dr.rer.nat. Matthias Zenker
> > Dipl. Phys.
> > Grundlagenentwicklung Technologie
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> > URL: _http://www.ERBE-med.de_
> > ----------------------------------------------------------------
> > 
> > 
> > 
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> 
> --
> Prof. Christophe Geuzaine
> University of Liege, Electrical Engineering and Computer 
> Science http://www.montefiore.ulg.ac.be/~geuzaine
> 
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_____________________________________________________________________
ERBE Elektromedizin GmbH
Firmensitz: 72072 Tuebingen
Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede
Registergericht: Stuttgart HRB 380137