CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > Siemens

Meshing problems

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

LinkBack Thread Tools Search this Thread Display Modes
Old   May 12, 2008, 02:09
Default Meshing problems
Posts: n/a
To all

Since I am very new to star-cd, please forgive me if anything i post has already been solved.

The problem I am facing is that when volume mesh is generated, the error is found during assembling mesh, which shows

"Cannot find ngeom file:- TMP6_S~1\procadmesh.ngeom. Dualising mesh has failed."

After further looking in log file, the message in detail as follows is found

"cannot find closest point for vertex 2012252 on interface (eps=3.2614e-004)

vertex cannot be extruded! Cannot find ngeom file:- TMP6_S~1\procadmesh.ngeom. Dualising mesh has failed."

However if i change to mesh by other configurations, it seems to be ok while meshing. But the solver did not convergence properly and results become unrealistic.

It would be very kind of you if you can provide any useful information.

Best regards Perchatuporn

  Reply With Quote

Old   July 21, 2008, 05:27
Default Re: Meshing problems
Posts: n/a
1. first problem might got to do with your tolerance setting. You might want to reduce it further, say eps=10e-5(-6).

2.second problem seems surprising though. If you grid is "good", the bcs or flow problem are defined correctly, then one wouldn't expect such a "big" deviation especially in qualitative terms. You might consider checking the scheme you're using, example, QUICK might not be good for tet mesh. Also, performed "check" on all your inputs variables.

best, Freeman
  Reply With Quote


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
meshing problems with CFX 10 Cedric PERE CFX 1 March 15, 2007 18:09
FloWizard - problems in meshing Mark FLUENT 0 June 21, 2006 05:55
Problems with gambit meshing Aussie Shane FLUENT 1 May 4, 2006 07:18
Gambit Meshing Problems Francesco B FLUENT 2 September 30, 2005 04:28
Meshing problems??? Nish CFX 3 August 22, 2000 02:57

All times are GMT -4. The time now is 05:47.