Phase Change Injector

Federico Bruni

I have to simulate nitrous oxide vaporization/atomization through a injector in a combustion chamber. I need to test spray shape and atomization too. I tried to set non homogeneous turbolence and isothermal model as first. I imposed the mass flux at inlet and pressure at the outlet. Two fluid (NItrous Oxide Gas and Liquid) constitute the domain. How can I set the two liquid interface and phase change? I tried to run the simulation but I have overflow error and solver impose the wall condition at the outlet to prevent fluid flows into the domain...

Thank you for help