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-   -   how to calculate the reversed volume flow rate in an certain iso-surface? (http://www.cfd-online.com/Forums/fluent/106580-how-calculate-reversed-volume-flow-rate-certain-iso-surface.html)

coolliuyinli September 2, 2012 06:16

how to calculate the reversed volume flow rate in an certain iso-surface?
 
Hi everybody,

I'm doing some simulations on a swirling pipe flow. Now I am interested in the internal recirculation zone and want to compute the reversed volume flow rate in certain iso-surface. I know how to use the "Report" to calculate the total volume flow but what I need is the negetive (reversed) volume flow rate. So could anybody help me deal with this problem?

Thank you so much.

husker September 3, 2012 01:29

Hi,

I don't get why you are interested in reversed flow on any internal surface. But for that, I think you can report velocity scalars on the iso-surface. By using excel, you can separate negative and positive values and then do calculation what you need.

Regards

coolliuyinli September 4, 2012 01:33

Quote:

Originally Posted by husker (Post 379942)
Hi,

I don't get why you are interested in reversed flow on any internal surface. But for that, I think you can report velocity scalars on the iso-surface. By using excel, you can separate negative and positive values and then do calculation what you need.

Regards

Yeah it works. Thank you so much for your help.


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