discussion about boundary condition
 

I'm using Eulerian multiphase model to simulate a gas-liquid multiphase flow field, the modality of fluid at the two outlets are all fully developed turbulent flow,so <outflow> boundary condition is the best choice,but I want to set the volume fraction at the outlets to make sure that the gas pour out just from one outlet and the liquid from the other . How can I carry that out? looking forward to a answer,thank you