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-   -   Urgent: Boundary condition (http://www.cfd-online.com/Forums/fluent/41880-urgent-boundary-condition.html)

ck1973 July 29, 2006 07:46

Urgent: Boundary condition
 
I want to simulate a turbulent flow in a rectangular channel, at the outflow boundary, zero-gradient conditions are imposed for all dependent variable. Which is the condition which I must use: pressure outlet or outflow?

Imran July 29, 2006 14:36

Re: Urgent: Boundary condition
 
i think pressure flow BC would be more suitable for incompressible flow as u are using the 0-gradient conditions, outflow BC are used where information about the velocity & press are not know at the outlet of the sytem


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