[Gmsh] Very thin elements on surface (slivers)

Alexander Tismer alexander.tismer at ihs.uni-stuttgart.de
Thu Oct 29 12:05:49 CET 2015


Hi Christophe,

thanks for your quick reply.

The optimization steps (Mesh.Optimize=1 and Mesh.OptimizeNetgen) improve 
the mesh, but there is still a sliver in my mesh (see attached picture). 
I attached also my GMSH log file.

Is there a possibility to set a minimum element volume in GMSH?

Another interesting point is that the standard 3D GMSH Delauny algorithm 
(Mesh.Algorithm3D = 1) does not finish 3D meshing. The tetgen step is 
finished, but GMSH optimization step not.

Do you feel that the surface mesh is the problem? Is it of very bad quality?

Best Regards
Alex

On 10/29/2015 10:44 AM, Christophe Geuzaine wrote:
> Mesh.Optimize=1;" and/or "Mesh.OptimizeNetgen=1

-- 
Alexander Tismer

Institut für Strömungsmechanik
und Hydraulische Strömungsmaschinen
Universität Stuttgart
Pfaffenwaldring 10
70550 Stuttgart

Tel.:   +49 (0) 711 / 685 63007
Fax:    +49 (0) 711 / 685 63255
eMail: alexander.tismer at ihs.uni-stuttgart.de
http://www.ihs.uni-stuttgart.de
-------------- next part --------------
A non-text attachment was scrubbed...
Name: sliver_still_0.png
Type: image/png
Size: 73097 bytes
Desc: not available
URL: <http://www.geuz.org/pipermail/gmsh/attachments/20151029/2fcb076a/attachment-0001.png>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: gmsh.txt
URL: <http://www.geuz.org/pipermail/gmsh/attachments/20151029/2fcb076a/attachment-0001.txt>