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nozzle boundary conditions

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Old   November 14, 2014, 13:09
Default nozzle boundary conditions
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Hello everyone!

I am working on a 3D nozzle and I am not capable of setting the BC in order to make the stream "flow". I am trying fixing a pressure at the inlet and a lower one to the outlet and I want to get the velocities associated.
So, which are the proper BC to be set? Are them pressureInletOutletVelocity, freeStream or any other similar to these? in case they are, how should I program them in p and/or U files?

Thank you very much

PS: before using the solver for compressible flow I am solving it with simpleFoam just to adjust rightly basic parameters; mainly p and U
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boundary condition p, boundary condition u, boundary conditions, simplefoam

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