CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   non-positive-volume (http://www.cfd-online.com/Forums/fluent/46020-non-positive-volume.html)

lucia September 12, 2007 17:28

non-positive-volume
 
hi all,

what cann i do when fluent say that i have a non-positive-volume???

thanks!


Dr. FLow Squad September 13, 2007 05:39

Re: non-positive-volume
 
Within fluent, nothin much, try Check grid or smooth/swap otherwise redo your mesh in your mesh generator. Often a smoothing there is enough.

SV September 14, 2007 06:33

Re: non-positive-volume
 
In the gambit volumes panel, check volumes for both geometry and topology. In the results if you find any volume that failed - thats would the problematic volume.

If this fails make sure that there are no faces with very small areas from the tools panel. Even then if you still see a non-positive volume, try reading it in fluent 3ddp instead of 3d

nicolas September 15, 2007 02:24

Re: non-positive-volume
 
thanks very much !


All times are GMT -4. The time now is 22:27.