[Gmsh] help with hexahedra

Pierre MOUSSOU pierre.moussou at edf.fr
Tue Jun 22 12:34:23 CEST 2010


Hello


I am currently trying to build an hexahedral mesh for CFD purposes, and I 
wished to use the "Transfinite Volume" command applied to quadrangular 
surfaces. I did not want to use the "Extrude" command because the 
numbering of the lateral surfaces is hard to predict. 

I succeeded in meshing surfaces with more than four sides, by defining 
four corners, as shown in the joint file. 

I expected to do the same thing with volumes, by defining eight corners. 
It does not seem to work, and the message indicates that only volumes with 
5 or 6 faces can be meshed with hexahedra. 

Is there a way to mesh my volume with hexahedra ? 

Otherwise, if only 6 faces volumes can be meshed with hexahedras, I do not 
see the point in defining six corners.


Thank you for your help.


With best regards




  
 
Pierre MOUSSOU
Ingénieur-chercheur expert
EDF - R&D
Département Analyses en Mécanique et Acoustique 
Groupe Expertise Vibratoire des Structures
1, avenue du general de Gaulle
92141 Clamart
 
pierre.moussou at edf.fr
Tél. : 01 47 65 44 43
  
Un geste simple pour l'environnement, n'imprimez ce message que si vous en 
avez l'utilité.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.geuz.org/pipermail/gmsh/attachments/20100622/ec327895/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/gif
Size: 1816 bytes
Desc: not available
URL: <http://www.geuz.org/pipermail/gmsh/attachments/20100622/ec327895/attachment.gif>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/gif
Size: 1151 bytes
Desc: not available
URL: <http://www.geuz.org/pipermail/gmsh/attachments/20100622/ec327895/attachment-0001.gif>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: test_hexa.geo
Type: application/octet-stream
Size: 3731 bytes
Desc: not available
URL: <http://www.geuz.org/pipermail/gmsh/attachments/20100622/ec327895/attachment.geo>
-------------- next part --------------



Ce message et toutes les pièces jointes (ci-après le 'Message') sont établis à l'intention exclusive des destinataires et les informations qui y figurent sont strictement confidentielles. Toute utilisation de ce Message non conforme à sa destination, toute diffusion ou toute publication totale ou partielle, est interdite sauf autorisation expresse.

Si vous n'êtes pas le destinataire de ce Message, il vous est interdit de le copier, de le faire suivre, de le divulguer ou d'en utiliser tout ou partie. Si vous avez reçu ce Message par erreur, merci de le supprimer de votre système, ainsi que toutes ses copies, et de n'en garder aucune trace sur quelque support que ce soit. Nous vous remercions également d'en avertir immédiatement l'expéditeur par retour du message.

Il est impossible de garantir que les communications par messagerie électronique arrivent en temps utile, sont sécurisées ou dénuées de toute erreur ou virus.
____________________________________________________

This message and any attachments (the 'Message') are intended solely for the addressees. The information contained in this Message is confidential. Any use of information contained in this Message not in accord with its purpose, any dissemination or disclosure, either whole or partial, is prohibited except formal approval.

If you are not the addressee, you may not copy, forward, disclose or use any part of it. If you have received this message in error, please delete it and all copies from your system and notify the sender immediately by return message.

E-mail communication cannot be guaranteed to be timely secure, error or virus-free.