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-   -   How did I output discharge data ? (http://www.cfd-online.com/Forums/flow-3d/64779-how-did-i-output-discharge-data.html)

Andy Chen May 24, 2009 11:10

How did I output discharge data ?
 
Dear Flow-3d expert :

I simulated a channel in flow-3d. I want to see discharge data at the last cross-section. How did I set in flow-3d ?

I can see the mesh depended history data of right, left, front, and back boundary fluid 1 volume flow rate in '' Analize->Probe->Mesh depended history->Text(Graphical) "'. Were that discharge data? I am confused .

Thanks your help, regards.

Ghirghidov May 25, 2009 02:24

Flow rate is another name. :-)

Andy Chen May 25, 2009 07:40

Thanks for Ghirghidov.
So you mean that volume flow rate is not discharge data, didn't it ?

Ghirghidov May 25, 2009 08:18

I mean volume flow rate is discharge data for border.

Andy Chen May 25, 2009 13:46

Ok, I see.

Then, do you know how can I output discharge data at last cross-section ?

Because, governing equations don't have "flow rate term".

I have an idea that output velocity data. Then velocity multiply to mesh area that is volume flow rate. How did you think ?

Ghirghidov May 26, 2009 03:35

If the boundary volume flow rate is not enough you are right (IMHO you have to exclude solid parts from the mesh area but sometimes it's quite difficult)


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