CFD Online Logo CFD Online URL
Home > Forums > FLUENT

minimum volume

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

LinkBack Thread Tools Display Modes
Old   December 26, 2003, 22:04
Default minimum volume
Posts: n/a
When you do grid check what if you get a negative volume ? is that ok ? what does a negative volume mean?

minimum volume (m3): -2.782189e-01
  Reply With Quote

Old   December 28, 2003, 12:39
Default Re: minimum volume
Posts: n/a
Negative volume is not okay... Fluent will not solve... if you have cells (tets) in complex geometry the most skewed element could have this problem that doesn't pass the mesh check....Try modifying mesh to remove the negative volume cells....left-handed cells will also result in negative volume... These are connectivity issues between adjacent cells as per fluent definition...
  Reply With Quote

Old   January 1, 2004, 05:35
Default Re: minimum volume
sijal ahmed
Posts: n/a
negative volume are not ok, as they produce the singularity . it can be check by eyes. generally this problem is near the solid body with converging section. wat happens is that the two or more mesh lines at wrong path
  Reply With Quote


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
how to set periodic boundary conditions Ganesh FLUENT 13 January 22, 2014 05:11
BlockMesh FOAM warning gaottino OpenFOAM Native Meshers: blockMesh 7 July 19, 2010 14:11
On the damBreak4phaseFine cases paean OpenFOAM Running, Solving & CFD 0 November 14, 2008 22:14
fluent add additional zones for the mesh file SSL FLUENT 2 January 26, 2008 12:55
Axisymmetrical mesh Rasmus Gjesing (Gjesing) OpenFOAM Native Meshers: blockMesh 10 April 2, 2007 14:00

All times are GMT -4. The time now is 06:43.