Multiphase:Heat exchanger

JSM

Hi to all,

I am doing multiphase heat exchanger simulation. Hot fluid vapor is cooled into liquid by water. There is no mixing and reaction of fluids

Here which one i should take primary and secondary fluid. Initially there is 95% hot fluid vapor is there.

How to specify the phase change. Really i want to find the volume fraction of vapor and liquid at outlet.

I am new to multiphase problems. Give your valuable suggestions to guide me.

Thanks in advance

JSM