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

Meshing problem

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Display Modes
Old   April 1, 2008, 11:31
Default Meshing problem
  #1
Sanjay Jain
Guest
 
Posts: n/a
I modelled the Francis turbine (hydro turbine) in 2D.While meshing using Tri-Pave scheme, GAMBIT shows that triangle meshing reached specified maximum no. of mesh faces:100000 and you can modify this behavior by changing the value of default MESH.TRIMESH.MAX_FACES.

Please let me know how to solve this problem.

Sanjay Jain

  Reply With Quote

Old   April 1, 2008, 15:20
Default Re: Meshing problem
  #2
Dan
Guest
 
Posts: n/a
Sanjay,

It sounds like you have a degernate face. I have come across this plenty of times. Gambit may think that the face is folded over itself many many times so when it goes to mesh the face there are actually layers and layers of faces. My main experience is with 3D, but I would suggest deleting the face that is causing the trouble and either recreate it in Gambit or import it again into gambit if that is how the geometry was created.
  Reply With Quote

Old   April 2, 2008, 09:49
Default Re: Meshing problem
  #3
Sanjay Jain
Guest
 
Posts: n/a
Dear Sir,

Thanks for your valuable reply.

I have already tried the option mentioned by you but same problem is repeating. Actually, this problem occurs not only in one face but all the faces. (I tried it in 3 different faces).

Please let me know how to solve this problem?

With regards.

Sanjay Jain
  Reply With Quote

Old   April 3, 2008, 11:07
Default Re: Meshing problem
  #4
Dan
Guest
 
Posts: n/a
If it occurs in all the faces, then I'm not too sure. How was the geometry created. Perhaps its a scale issue if you imported it. Try different interval sizes or limiting the interval count and see if you can mesh. Are you actually trying to get the face above 100000 elements?
  Reply With Quote

Old   April 4, 2008, 15:39
Default Re: Meshing problem
  #5
Dan
Guest
 
Posts: n/a
If you want to change the max number of elements, go to Edit>>Defaults and select the Mesh tab. From there you can pick the bullet labeled "TRIMESH" and in the variable section select "MAX_FACES" and set it to a value that you like. This is for Gambit 2.4.6, I'm sure all other versions are similar if not the same method for this.
  Reply With Quote

Old   April 5, 2008, 09:25
Default Re: Meshing problem
  #6
Sanjay Jain
Guest
 
Posts: n/a
Thanks a lot for valuable reply. I will try it.

Sanjay Jain
  Reply With Quote

Old   April 5, 2008, 09:51
Default Re: Meshing problem
  #7
Sanjay Jain
Guest
 
Posts: n/a
I tried your suggestion and it works.

Once again Thanks a lot

Sanjay Jain
  Reply With Quote

Reply

Thread Tools
Display Modes

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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Meshing problem Tomas FLUENT 0 July 1, 2008 09:31
Meshing problem Sanjay Jain FLUENT 2 April 7, 2008 10:37
Meshing problem akr FLUENT 2 February 3, 2008 21:22
meshing problem danard CFX 3 March 2, 2003 20:17
Meshing problem John FLUENT 2 January 31, 2003 13:08


All times are GMT -4. The time now is 15:57.