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

non-positive surfaces

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

Reply
 
LinkBack Thread Tools Display Modes
Old   September 19, 2007, 06:43
Default non-positive surfaces
  #1
rav_aero
Guest
 
Posts: n/a
I am solving a 2-d axisymmetric flow. when i import my mesh to fluent, it gives an error saying as "non-positive surfaces exists"

can anybdy tell me how to go abt.. it.

bye thanks in advance
  Reply With Quote

Old   September 20, 2007, 10:37
Default Re: non-positive surfaces
  #2
SV
Guest
 
Posts: n/a
Use gambit check faces geometry and topology to see if any of the faces fail the check. If they do that's what causes the non-positive surfaces. Also in the tools panel you can check for faces with very small areas and fix any of those which have very small area compared to the rest. If all these are OK and you still have problems - try reading in 2ddp instead of 2d. Hope this helps.

  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
Importing or Creating 2D Flat Surfaces into CFX Sam CFX 5 March 30, 2013 12:11
how to get forces on Iso-Clip Surfaces and How to get forces in cylindrical coordinat CFD XUE FLUENT 0 April 18, 2011 05:24
Exporting surfaces inside the control volume (interior) bigmoneylou ANSYS Meshing & Geometry 1 January 8, 2011 16:16
Faceted surfaces in ICEM Chriss Main CFD Forum 1 May 6, 2008 15:18
Surfaces Mark FLUENT 2 February 9, 2004 10:41


All times are GMT -4. The time now is 02:24.