nozzle exit boundary condition -- CFD Online Discussion Forums

October 1, 2021, 09:54	nozzle exit boundary condition	#1
hiep.nguyentrong Member Nguyen Trong Hiep Join Date: Aug 2018 Posts: 48 Rep Power: 8	Hello every one, I have some problem with boundary condition in rhoSimpleFoam. I want to simulation a rocket in high subsonic, steady state. When i put all body of the rocket as wall condition and far-field with freestream conditon, all run fine. But when i add a nozzle exit in the rocket as freestream (even totalPressure- zeroGradient velocity or fix pressure and fix velocity or fix pressure and zeroGradient velocity), all get divergence. I used k-omegaSST turbulence model. Can anyone help me?

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