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-   -   Over- Underexpanded Supersonic Nozzle (http://www.cfd-online.com/Forums/openfoam-pre-processing/123508-over-underexpanded-supersonic-nozzle.html)

Obad September 14, 2013 07:39

Over- Underexpanded Supersonic Nozzle
 
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Hy folks!
I'm new to OpenFoam.

I try to simulate the flow behind a supersonic nozzle. Now I don't really know if the solver that I'm using is appropriate for this task or if my boundary conditions are even set correctly.

I use the solver rhoCentralFoam.

My boundary conditions are as follows (see the attached picture for the numbering of my boundaries):

B1 : pressure fixedValue, temperature fixedValue, velocity fixedValue
B2 : pressure slip, temperature slip, velocity slip
B3: pressure fixedValue, temperature zeroGradient, velocity zeroGradient
B4: pressure slip, temperature slip, velocity slip
B5: pressure fixedValue, temperature zeroGradient, velocity zeroGradient
B6: pressure symmetryPlane, temperature symmetryPlane, velocity symmetryPlane

My calculation didn't work properly :(

Could someone please give me some tips concerning the solver and the boundary conditions?

Cheers!


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