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

Fluent, Grid Builing Issue

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 12, 2008, 18:57
Default Fluent, Grid Builing Issue
  #1
Mark
Guest
 
Posts: n/a
Hi,

I'm trying to model the flow around around a wing mirror. I've taken the geometry in gambit, created a volume around it and subtracted the mirror geometry from it. I then mesh it and export the mesh for use in Fluent. When i read the mesh in Fluent i get an error stating "Building...

grid, Cell Centroid is xc 3815.967859 yc -975.544274 zc 975.307203 WARNING: cell 2932552 of thread 2 has NULL face pointer 3.Error: Build_Grid: grid error.

Clearing partially read grid" and "Null Domain Pointer" i was wondering if anyone can shed a light on what this means.

Thanks
  Reply With Quote

Old   March 13, 2008, 10:51
Default Re: Fluent, Grid Builing Issue
  #2
Dave
Guest
 
Posts: n/a
I have had an error similar to this before where Gambit did not export the entire mesh because the hard disc was full.
  Reply With Quote

Old   March 13, 2008, 11:49
Default Re: Fluent, Grid Builing Issue
  #3
Mark
Guest
 
Posts: n/a
Hmm. I don't think thats my problem.
  Reply With Quote

Old   March 14, 2008, 03:44
Default Re: Fluent, Grid Builing Issue
  #4
Vinod Dhiman
Guest
 
Posts: n/a
Did you check the quality of grid? Just check if it has some negative elements because NULL DOMAIN POINTER comes usually in that case.
  Reply With Quote

Old   March 14, 2008, 16:24
Default Re: Fluent, Grid Builing Issue
  #5
CheeOnn
Guest
 
Posts: n/a
you should check to make sure no duplicate edges on the geom.
  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
Fluent Export Command Issue .... Leo Hindarto FLUENT 0 January 4, 2009 00:20
Hey Fluent Experts ! : On a turbulence issue Amr FLUENT 0 October 15, 2006 02:33
Grid-checking issue in Fluent Vince FLUENT 3 December 4, 1999 22:56
Fluent 5.0 boundary condition issue with RSM Flav Main CFD Forum 2 October 20, 1999 05:57


All times are GMT -4. The time now is 10:41.