[Gmsh] gmsh of a closed surface

DILASSER Guillaume Guillaume.DILASSER at cea.fr
Mon Jun 26 10:18:04 CEST 2017

Hi Orlando,

I invite you to take a look at tutorial t13.geo in Gmsh documentation here<http://gmsh.info/doc/texinfo/gmsh.html#t13_002egeo>. If I understand your issue correctly, copy-pasting that tutorial should be almost everything you need to do. Simply change the initial mesh to merge for an STL export of your surface. You also have to change the value assigned to Field[1].F for the characteristic length you want your mesh to have. Eventually, if you want second order tetrahedrons, you will need add somewhere in the script file the command : Mesh.ElementOrder = 2 ;.

Let me know if it worked or if you have other questions,

Guillaume DILASSER
Doctorant DACM / LEAS
CEA - Centre de Saclay - Bât.123 - PC 319c
91191 Gif sur Yvette Cedex - France -

guillaume.dilasser at cea.fr<mailto:guillaume.dilasser at cea.fr>

De : gmsh [mailto:gmsh-bounces at ace20.montefiore.ulg.ac.be] De la part de RIVERA ROLDAN, Jorge Orlando
Envoyé : lundi 26 juin 2017 09:45
À : 'gmsh at onelab.info' <gmsh at onelab.info>
Objet : [Gmsh] gmsh of a closed surface

Good Morning  List-Members

I need your help

I have a closed surface  defined by a triangles.  What I have are the node coordinates  and a connectivity   table ,   (  I can produce  abaqus or stl or vtk format )

Node1  X1 Y1 Z1
Node2  X2 Y2 Z2
Noden  Xn Yn Zn

Triangle1 Node1 Node2 Node3
Triangle2 Node3 Node4 Node5

Could it be possible to use gmsh to generate a  Tet mesh  second order ?
Any hint ,  comment , link or example will be warmly welcome  !!

Thanks so much !


Mit freundlichen Gruessen / Best Regards

Orlando Rivera
MTU Aero Engines AG
Engineering Systems CAE  (POEA)
Dachauer Str. 665
80995 Muenchen
Tel +49 89 1489-6689
Fax +49 (0)89 14 89-96951
orlando.rivera at mtu.de<mailto:orlando.rivera at mtu.de>

MTU Aero Engines AG
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Vorsitzender des Aufsichtsrats/Chairman of the Supervisory Board: Klaus Eberhardt
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