[Rabin]

A horizontal cylinder of length 4 m and diameter 1.5 m is half-filled with water. Water temperature is 45°C. The cylinder rotates at 1 rpm. Hot air with temperature of 60°C is blown at a velocity of 1.5 m/s through the cylinder. Assume the system to be isothermal. Both air and water are continuous fluids.



Water evaporates and the air carries the evaporated water with it. The task is to determine the amount of evaporated water.



How to set this system up in CFX? "Multiphase Flow in a Mixing Vessel" tutorial is similar, however some details are lacking.



While performing the transient simulation with homogeneous multiphase model and standard free surface model, mass imbalances occur and the simulation does not converge.



Is there any other better tutorial for this problem? How can this be solved?