[Gmsh] 3D meshing problem

anon isaramongkolrak anone_91 at hotmail.com
Sat Jul 25 06:42:03 CEST 2009


Thank you very much 
 
> Date: Fri, 24 Jul 2009 13:13:29 +0200
> From: David.Colignon at ulg.ac.be
> To: anone_91 at hotmail.com
> CC: gmsh at geuz.org
> Subject: Re: [Gmsh] 3D meshing problem
> 
> Hi Arnon,
> 
> the end surfaces of your cylinders must be defined as "holes" in the 2 lateral faces of your bounding box.
> 
> And the characteristic lengths you associated with some points are too small, it will produce a very big mesh !
> 
> Cheers,
> 
> Dave
> 
> -- 
> David Colignon, Ph.D.
> Collaborateur Logistique du F.R.S.-FNRS
> CÉCI - Consortium des Équipements de Calcul Intensif
> ACE - Applied & Computational Electromagnetics
> Sart-Tilman B28
> Université de Liège
> 4000 Liège - BELGIQUE
> Tél: +32 (0)4 366 37 32
> Fax: +32 (0)4 366 29 10
> WWW: http://hpc.montefiore.ulg.ac.be/
> Agenda: http://www.google.com/calendar/embed?src=david.colignon%40gmail.com
> 
> 
> 
> arnon wrote:
> > I am trying to 3D mesh a combination of 10 cylinders, L shape and Box 
> > (see attached.geo file) , but Gmsh crashes
> > 
> > 1.Assertion failed!
> > 2. Runtime error (Ntegen algorithm)
> > 
> > I have also tried to make a geometry with many boxes of different size 
> > adjacent to each other all with different materials (i.e. they must be 
> > meshed separately,and the mesh must be connected), but get similar 
> > problems with
> > the meshing. Have you got any tips, or maybe a good example file other 
> > than the examples/tutrials provided?
> > 
> > arnon
> > 
> > 
> > ------------------------------------------------------------------------
> > 
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> > gmsh at geuz.org
> > http://www.geuz.org/mailman/listinfo/gmsh
> 

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