How to set 2 phases in Fluent
 

- The geometry is Heat pipe.
- Phase 1 is ( vapor ).
- phase 2 is ( water ).

there is no interation between the two fluids at all ( separated in two domains )
but there r evaporation and condensation to get vapor at evaporator as well as get water at condenser !!!

also there r 2 different RADIAL velocities !! How to set up this case !!!!