[Gmsh] surface mesh, connect the faces of a compound

[David Colignon]

Hi Bernd,

can you try with adding	the

-string "Geometry.OCCSewFaces=1;"

option ?

This should work with relatively simple geometries, i.e. faces sharing a common line.

Regards,

Dave

-- 
David Colignon, Ph.D.
1er logisticien de recherche
Université de Liège
ACE - Applied & Computational Electromagnetics
Sart-Tilman B28
10, Grande Traverse
4000 Liège - BELGIQUE
Tél: +32 (0)4 366 37 32
http://www.ulg.ac.be/nic4

On 21/09/15 19:25, Bernd Hahnebach wrote:
> Hi there,
>
> This is my first post to the mailing list so I may introduce myself first. The "identifier" given to
> me by my parents is Bernd and this corresponds to what most people call myself. The bred to feed
> myself an my familiy I earn in an engineering office near Zuerich in Switzerland. I'm structural
> engineer in the building industry. In my spare time I develop on the FEM Workbench and on the Arch
> Workbench of the parametric open source cad plattform FreeCAD. This is why I'm gone write to this list.
>
>
> FreeCAD uses for internal parametric surface and solid meshing netgen. AFAIK due to licence
> incompatibility between FreeCAD and GMSH it has never been an option to use GMSH instead. But there
> exists a FreeCAD macro which uses the GMSH installed on ones computer for meshing. Most users mainly
> use this GMSH macro for meshing their models including myself. The macro exports a *.step meshes
> with GMSH and imports the *.unv mesh back into FreeCAD. Babbled enought,the important part of the
> post ...
>
>
> I run into trouble with meshing compunds of faces. The faces where not connected to each other and
> thus a Finite Element Analysis will fail to work without manual connection off all the faces of the
> compund. As a example a very simple compund of just two faces is taken.
>
> mesh command:
> gmsh compound_of_faces.step -3 -format unv -o compound_of_faces.unv -algo netgen -clmax 100,00
> -order 2 -optimize
>
> gmsh --version
> 2.8.5
> on Debian Jesie
>
> I was wondering if it is possible to tell GMSH to mesh a connected Surface Mesh of a compund of faces?
>
> The files could be downloaded here:
> https://cloud.woelkli.com/public.php?service=files&t=1cfd13febed7694726b902cdb36476d4
>
>
> Kind Regards and thanks to all people who have ever contributed to GMSH development.
>
> Bernd
>
>
>
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