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

Gambit: mesh size to small???

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   January 27, 2006, 03:53
Default Gambit: mesh size to small???
  #1
Ralf Schmidt
Guest
 
Posts: n/a
Hi,

I am trying to mesh a komplex geometry and get following error for a lot of edges:

"WARN: Exact projection failed for node on edge xx near vertex xx. mesh size may need to be enlarged for this virtual edge if mesh is not acceptable"

I don't have any virtual edges in the geometry. And when I use coarser mesh, the meshing failed as well (mesh size to large in the area of small gaps). I mesh 3D with ted/Hybrid

Anny suggestions??? How can I display, which edges or faces are not succsessfully meshed?

Ralf
  Reply With Quote

Old   January 28, 2006, 02:26
Default Re: Gambit: mesh size to small???
  #2
Omar Qazi
Guest
 
Posts: n/a
I think I have faced this problem once and this may be solved by adjusting the tolerence to a lower limit in the program defaults. It is set to 1e-3 and you can reduce to 1e-5 or 1e-6 to eliminate the problem you are facing. Then try to re-mesh with a finer grid.
  Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
When the velocity is small, the dynamic mesh doesn't move li2150 FLUENT 0 January 3, 2011 11:27
ICEM Tetra mesh, Size reduction and Skewness problem Catthan ANSYS Meshing & Geometry 6 December 5, 2010 20:39
unstructure mesh size control near to wall using gambit lalit kumar FLUENT 4 July 6, 2010 16:13
Mesh size for particulate flow simulations Shahri Main CFD Forum 0 March 24, 2009 18:40
How to control Minximum mesh space? hung FLUENT 7 April 18, 2005 10:38


All times are GMT -4. The time now is 21:23.