[Gmsh] Step Import Non Conformal Mesh

faber.mueller at t-online.de faber.mueller at t-online.de
Sun Aug 27 09:31:12 CEST 2017


Thank you very much for your answer. Boolean Fragments applied on the overlapping Volumes (even if they didn't seem to overlap on the first view) healed my geometrie and I finally received a conformal mesh from my step import. 
So now I can go on with getdp. 

Thanks and have a nice weekend,

Betreff: Re: [Gmsh] Step Import Non Conformal Mesh
Datum: 2017-08-14T08:27:37+0200
Von: "David Colignon" <david.colignon at ulg.ac.be>
An: "faber.mueller at t-online.de" <faber.mueller at t-online.de>, "Getdp, Gmsh" <gmsh at onelab.info>


If your volumes are somehow overlapping and give a nonconformal mesh, then you need to heal the geometry and you will probably have to 
reconstruct the volumes. But Gmsh version 3 gives you more powerful tools to edit the geometry, see 



David Colignon, Ph.D.
1er Logisticien de Recherche
Université de Liège
ACE - Applied & Computational Electromagnetics
Quartier POLYTECH 1 - Montefiore B28
Allée de la découverte 10
4000 Liège - BELGIQUE
Tél: +32 (0)4 366 37 32

On 13/08/17 18:24, faber.mueller at t-online.de wrote:
> Good evening,
> First of all I want to thank Dr. Colignon and Prof. Geuzaine for their answers to my question 
> http://onelab.info/pipermail/gmsh/2017/011502.html  . Now I have another problem. After I imported the geometry, which contains out of several 
> solids, and assigned physical volumes, surfaces and characteristic length  the mesh is nonconformal. When I activated sew faces before 
> importing, I have no Volumes in the statistic, so I cant assign physical Volumes. Unfortunately I'm not allowed to upload the step file here.
> I have used the search function and some years ago there was a discussion with Dr. Zenker in 2013 :
> http://onelab.info/pipermail/gmsh/2013/007880.html  . He used a workaround with netgen. I couldn't try it because our IT Department denied my 
> query to install it on my laptop.
> Is there a solution within the new gmsh version 3 to heal the geometry and to keep the volumes ?
> Thanks for your time and support
> Fabian
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