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-   -   How to Set Pressure Outlet Boundary Condition (https://www.cfd-online.com/Forums/fluent-udf/106483-how-set-pressure-outlet-boundary-condition.html)

freeday August 30, 2012 04:55
How to Set Pressure Outlet Boundary Condition
 
Dear all,
I have big problem about how to set pressure outlet boundary condition. My simulation is about simulation in tank which have ventilation outlet. In this ventilation, I will set it with pressure outlet but I don't know backflow method. May U know what is better method for backflow direction specification method and Specification Method for turbulence.
Thank before.
Regards
Defri:)

mali28 August 30, 2012 11:49
Quote:
Originally Posted by freeday (Post 379449)
Dear all,
I have big problem about how to set pressure outlet boundary condition. My simulation is about simulation in tank which have ventilation outlet. In this ventilation, I will set it with pressure outlet but I don't know backflow method. May U know what is better method for backflow direction specification method and Specification Method for turbulence.
Thank before.
Regards
Defri:)
If you have backflow then it is better that you specify pressure outlet at the outlet boundary. Do not use mass outflow in that case.


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