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-   -   I dont wana force concenteration at Pressure BC's (http://www.cfd-online.com/Forums/fluent/40584-i-dont-wana-force-concenteration-pressure-bcs.html)

Mazyar April 15, 2006 01:22

I dont wana force concenteration at Pressure BC's
 
Hello.

Thanks for your interest in reading my question.

The inlet to my domain carries air with some particle. Many BC's are pressure-outlet BC's. I would like to solve to find the concentrations, while pressure-outlet BC, asks to specify the concentrations at these BC's. Do you have any suggestion that how I can solve this problem?

Thanks, Mazyar


Venkatesh.V April 15, 2006 02:08

Re: I dont wana force concenteration at Pressure B
 
The species concentration specified at pressure oulet will used oly if backflow happens.

Mazyar April 15, 2006 02:42

Re: I dont wana force concenteration at Pressure B
 
Thanks for your replies, even when they are used when there is backflow, how can I know the concentrations on the boundaries? That is my uknown of the problem.

Thanks,


Venkatesh V April 16, 2006 09:47

Re: I dont wana force concenteration at Pressure B
 
2 Options ...

Provide better guess for concentration at oulet based on engineering judgement

or

Extend the outlet so that backflow would not happen and fluent will not use those data.


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