Unsteady compressible flow (no inlet) -- CFD Online Discussion Forums

August 28, 2015, 07:40	Unsteady compressible flow (no inlet)	#1
thibaud.fp New Member Thibaud Ferroud-Plattet Join Date: Aug 2015 Posts: 1 Rep Power: 0	Hi everyone, I'm currently modeling a compressible unsteady flow. I have a closed chamber, filled with gas at t=0. I'm trying to set vacuum in it using a vacuum pomp. So I only know the volumic flow outlet boundary condition. The problem I don't know how to set this boundary condition, and I don't either which model can be used to describe this flow. The goal of this study is to know the variation of temperature, pressure and velocity field along time. Thanks Thibaud

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