RGP table for supercritical, gas and liquid phase
I am working on the pipe that high pressure and temperature CO2 (P=9Mpa and T=310K) enters into the pipe and with pressure (P=5Mpa) exits.
My question is: I create a Homogenous binary mixture. In my domain, at the inlet, I have supercritical CO2 (neither liquid nor vapor). So, for the inlet, I have to specify mass fraction at the inlet. What would be the mass fraction?
I checked my model. I tried with pressure and temperature below supercritical, P=6Mpa and T=290K and quality of CO2=0.5. The simulation converged. So I think the problem should be related to the supercritical parameters.
Any suggestion about setting supercritical parameters in the inlet and two-phase at the outlet?