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how to calculate mass flow at pressure boundary

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Old   October 3, 2007, 09:35
Default how to calculate mass flow at pressure boundary
  #1
Hugo
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Hi Users!

How does Fluent calculate mass flow at pressure boundaries? The user's guide says

m'=sum(density * dot(velocity, area))

but when I try that I get a completely different answer. I've exported node coorinates to calculate area, and cell values of axial and radial velocity, and calulated in excel.

There is a problem the Fluent reports non-zero velocity at the nodes on the walls - could this be related?

Thanks for any clues? Hugo.
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Old   October 8, 2007, 06:19
Default Re: how to calculate mass flow at pressure boundar
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Jones
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if you using 2D analysis, first make reference value

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Old   October 11, 2007, 15:22
Default Re: how to calculate mass flow at pressure boundar
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Hugo
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Hi Jones,

Please could yu repost that, as it got cut off. thanks, hugo.
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