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-   -   how to simulate velocity field of supersonic gas (400m/s) from a nozzle to a chamber (http://www.cfd-online.com/Forums/openfoam/70398-how-simulate-velocity-field-supersonic-gas-400m-s-nozzle-chamber.html)

CYMa November 23, 2009 08:50

how to simulate velocity field of supersonic gas (400m/s) from a nozzle to a chamber
 
i want to simulate velocity field of supersonic gas (400m/s) from a nozzle to a chamber. Some friends may give me some advice? especially about the setting of boundary conditions...thank you very much ahead...

askjak November 25, 2009 05:48

I have done something very similar. I got inspired by looking at tutorials/compressible/rhoCentralFoam/LadenburgJet60psi (2D axi-symmetric).

CYMa November 26, 2009 04:26

Thank you very much!:)
I will have a try with your method....
These days, i am also trying to solve it with other methords.
I used sonicFoam to get an acceptable result. However, i also obtained acceptable results considering the flow as incompressible one with some steady turbulent solver...i don't know why...

mihir1310 December 15, 2009 22:31

I ve been trying the same problem too .. Can anyone discuss the nature of results ?? I ve been using Addy's analytical expressions for location of Mach disc as a benchmark ....


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