Selection of solver
 

I wanted to simulate the fluid flow and heat transfer through double pipe heat exchanger. Hot water is flowing through the inner tube and cold water flowing through annulus.
Bc are as follows

Hot water inlet temp is 65 C and cold inlet temp is 30 C , mc is 0.1 kg per s and mh is 0.1 kg per sec . Pressure outlet for both the fluids. Please suggest me the appropriate solver for the above problem. Regards
NSReddy

books on conjugate heat transfer
 

Any reference books on conjugate heat transfer to understand algorithms used in openFoam

Thanks and Regards