Abdullah Hassan
Subscriber

Yes, 

I have chosen four phases. 

And in boundary conditions, from phases, I assign Water Vapor volume fraction =1 to Tube inlet, 

Ammonia liquid volume fraction = 1 to Shell Inlet. and then after initialization,

I patch the water vapor VF = 1 at tube domain and Ammonia liquid VF =1 at shell domain.

Above is the geometry. 

And if you want to see the traces of water liquid, please refer below image.