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-   -   Pipe Flow Boundary conditions (http://www.cfd-online.com/Forums/main/3860-pipe-flow-boundary-conditions.html)

Kunal Jain September 4, 2001 20:52

Pipe Flow Boundary conditions
 
Hi I am trying to solve for a flow through a square duct for an incompressible flow in 2d. Now one of the boundary conditions becomes the inlet velocity. The other boundary condition if I set the pressure at the outlet how do I obtain the velocity in x and y direction. Do I set the gradients of both these as zero. Also if I explicitly specify the pressure would I be needing a reference pressure Thanks Kunal


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