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Old   September 12, 2007, 17:28
Default non-positive-volume
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hi all,

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


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Old   September 13, 2007, 05:39
Default Re: non-positive-volume
Dr. FLow Squad
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Within fluent, nothin much, try Check grid or smooth/swap otherwise redo your mesh in your mesh generator. Often a smoothing there is enough.
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Old   September 14, 2007, 06:33
Default Re: non-positive-volume
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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
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Old   September 15, 2007, 02:24
Default Re: non-positive-volume
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thanks very much !
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