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-   -   what is the real mean of "backflow volume fraction (https://www.cfd-online.com/Forums/fluent/50568-what-real-mean-backflow-volume-fraction.html)

zlnbaby February 16, 2009 07:06
what is the real mean of "backflow volume fraction
 
In the multiphase flow calculation,I use "pressure outlet" boundary condition,but I find that a value named "backflow volume fraction" need to be set in the second phase panel,what mean is it? Is it right that the value being set as "1" means the second phase total reflux?

maysmech February 13, 2011 02:01
Hi,

What should we do if we want exit of one of species in outlet?

VT_Bromley February 15, 2011 14:42
Quote:
Originally Posted by maysmech (Post 295014)
Hi,

What should we do if we want exit of one of species in outlet?

This is exactly what I'm trying to do. I'm dealing with a multiphase system that in the real world has a paper filter to stop the particulate or secondary phase. How would I represent this in the model?

maysmech February 18, 2011 08:56
Is it any idea about this issue?


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