CavitatingFoam RAN
 

Hi,
I am trying to simulate cavitating flow throw nozzle by cavitatingFoam with RAN turbulent model. But i am a beginner so i have some thing dont know:
1/ The default model in cavitatingFoam is 2-D or 3-D?
2/ When i run default model, it worked but when i try to run 3D by set from type: empty to the type as walls type, it not work?
3/ could you help me expain this one, I dont understant: psiv [0 -2 2 0 0] 2.5e-06 and rholSat [1 -3 0 0 0] 830

Thank you,