CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT

GAMBIT Question

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 17, 2004, 09:36
Default GAMBIT Question
  #1
Bob
Guest
 
Posts: n/a
When I mesh my geometry I get the message initialization failed perturb boundary nodes and then after that the mesh attempt fails and says that there are problems in the face meshes. Well when I do a face check my skewness is below the default. Is there a way that Gambit can tell me where these perturb boundary nodes are rather me go and remesh each edge and then face which is rather time consuming. Thanks
  Reply With Quote

Old   May 17, 2004, 20:54
Default Re: GAMBIT Question
  #2
Jason
Guest
 
Posts: n/a
Some methods to solve this problem: 1.smooth your geometry to avoid small gap 2.try to use small grid size 3.adapt your mesh from dense to rare with gradual rate
  Reply With Quote

Old   May 18, 2004, 15:06
Default Re: GAMBIT Question
  #3
Bob
Guest
 
Posts: n/a
Well my geometry contains over 1000 faces, therefore many more edges to be meshed. I have tried to mesh each edge and then the face to see how they look. But at the end when all faces are meshed I check them and Gambit says none have failed. But when meshing the volume I get the error. How can the faces can no skewed elements, but the volume says there is and therfore can't mesh the volume. I saved the boundary mesh and opened it in Tgrid. When I try to mesh there it keeps stopping and tells me to delete nodes and remesh. I have done this many times. There must be a better way. I have tried to make my mesh coarse as possible without having skewed elements. My geometry is exported as a parasolid from Unigraphics. Once imported into Gambit it is one volume. I have tried to clean the geometry in Gambit by deleting the volume into faces, but once I try to reheal the faces to become a volume it won't let me. If I could do that I can eliminate a lot of faces. If anyone has suggestions it will be helpful.
  Reply With Quote

Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Gambit maillage question stage81 FLUENT 0 October 1, 2010 10:06
Gambit question. Pablo Cornejo FLUENT 10 March 10, 2006 09:46
Gambit question LI Y FLUENT 2 April 6, 2003 16:59
a question about Gambit Jack FLUENT 5 February 6, 2003 06:04
an easy question about gambit brian FLUENT 3 December 2, 2002 23:58


All times are GMT -4. The time now is 06:19.