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Flow simulation help--unknown outlet

Question asked by Jimmy Welch on Nov 18, 2014
Latest reply on Nov 21, 2014 by Jared Conway

I am having difficulty understanding how to set up a model. The first goal is to find the pressure with respect to time of the outlet, which is unknown.


Initial conditions are as follows:




3000 psia14.7 psia
Temperature2500 F70 F


Transient boundary conditions (dependency) of each of these parameters at the inlet are known, and unknown at the outlet.


It is known that the gas at the outlet is considered high mach number flow.


Does anyone have any suggestions/experience with this sort of situation?


Thanks in advance for any help.