[sasanghomi]

Dear friends,

I have been trying to simulate the fluid flow inside a header which has an inlet and four outlets for a couple of days. The inlet condition is as below;
gas volume fraction=0.8612, massFlow(inlet)=41 kg/s

First of all, I used homogeneous free surface model and in the next simulation I used in-homogeneous free surface method (Drag coefficient 0.44 and h=500 w/m2K and 4.5 dyne/cm surface tension coefficient for the interface)

My question: when I use in-homogeneous method, the simulation does not converge well and the results are not trustworthy at all. Could you tell me which method is the best for my simulation? (I need to make sure about mass flow rates and Gas mass fraction in each branch, according to the results)

I appreciate your attention