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Flow coming from Industrial radial fan simulation in duct

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Old   November 7, 2014, 12:42
Default Flow coming from Industrial radial fan simulation in duct
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Christian
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Hi all,
I am trying to simulate the flow driven by an high-pressure industrial fan in a duct.

The ideal BCs would be:
-inlet:
p = 111325
U = 10
-outlet
p=101325
U = inletOutlet or similar (just to assure mass conservation

-walls:
p zeroGradient;
U fixedValue uniform (0 0 0 ).

I understood that it is not possible to set up these BCs in simpleFoam, so I am trying to use rhoSimpleFoam (see case in attachment).
I tried any possible combination of BCs my mind came up with but I could not get meaningful results, could anyone enlighten me on a proper setup?
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Old   November 8, 2014, 14:28
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Nima Samkhaniani
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im not expert about compressible flow
but in incompressible flow when u set pressure, use pressureInletVelocity for velocity
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Old   November 10, 2014, 05:05
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thank you for the reply, in fact this works with incompressible but the same BCs do not work for compressible!
I don't know if it's the BCs or something related to numerical schemes!

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Originally Posted by nimasam View Post
im not expert about compressible flow
but in incompressible flow when u set pressure, use pressureInletVelocity for velocity
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