Hi Olivier,
Since my original post, I have found that ElmerGrid built into ElmerGUI
does not properly convert .msh to mesh.*. However, the stand-alone
ElmerGrid executed from the command line does properly convert the gmsh
file. This is an acceptable work-around for me. More details have
been posted to the Elmer forum on "External Tools."
Thank you for your reply.
Jack
Hello,
Did you used ElmerGrid to convert the gmsh mesh in Elmer format?
This is simply done by
ElmerGrid 14 2 gmsh.msh
You will get the directory gmsh, containing the 4 Elmer mesh files
(mesh.header, mesh.elements, mesh.nodes and mesh.boundary).
Hope it helps.
OG
Le 13/06/12 14:20, Jack Mandelman a écrit :
>/ I recently constructed a 3D model in gmsh to investigate capacitive
/>/ coupling among a plurality of microstrip conductors oriented at
/>/ various angles to one-and-other. One model of interest contains three
/>/ dielectric regions. Each dielectric region is defined by a physical
/>/ volume entity in gmsh. Here is the problem encountered when using the
/>/ gmsh generated 3D mesh (V2 ascii .msh format) in Elmer:
/>/
/>/ Although the original .msh file from gmsh has 3 dielectric regions,
/>/ Elmer claims that it has 5 bodies. Since the mesh is unstructured and
/>/ is moderately complex (~300K tetrehedral elements), displaying the 5
/>/ bodies identified by Elmer is intractable. I found that the following
/>/ procedure results in a correct translation of the mesh from gmsh to Elmer.
/>/
/>/ 1) In gmsh, construct a .geo file, generate mesh and save as ascii V1
/>/ .msh file.
/>/ 2) Import ascii V1 .msh file (from 1 above) into EnGrid.
/>/ 3) Export from EnGrid as a gmsh ascii V2 .msh file.
/>/ 4) Open gmsh ascii V2 .msh file (from 3 above) with Elmer.
/>/ 5) Proceed to build Elmer .sif file.
/>/
/>/ So far, only when I generate a V1 .msh file and convert is to a V2
/>/ .msh format with EnGrid can I successfully use the mesh in Elmer. I
/>/ don't know if this is a bug in gmsh or Elmer, or perhaps an
/>/ incompatibility between versions. I am using Elmer version
/>/ 6.1.0.svn.5272.dfsg-1ubuntu2 and gmsh version
/>/ 2.5.1~beta1~svn9724~dfsg-1 in linux mint 12. Any comments and/or
/>/ suggestions regarding this issue are greatly appreciated.
/>/
/>/ Dr. Jack Mandelman (aka "The Modelman")
/>/
/>/
/>/ _______________________________________________
/>/ gmsh mailing list
/>/ gmsh at geuz.org <http://www.geuz.org/mailman/listinfo/gmsh>
/>/ http://www.geuz.org/mailman/listinfo/gmsh
/
--
-----------------------------------------------------------------------------------------------------------------
*Olivier Gagliardini *
Maître de Conférences LGGE UJF / CNRS
Membre junior de l'Institut Universitaire de France
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