Again multiphase!

Albert

Hello All! I am new to CFD? so please excuse for any mistakes, if there is any. I need to model multiphase flow in a pressure vessel (liquid - dispersed, gas - cont.). There happens to exist mass and heat transfer. Droplet trajectories, their initial parameters are know. As I understand the best model is Lagrangian for liquid, and eulerian for gas. What code would be better to use Fluent6 or CFX4.

And may be alittle bit offtopic, is there any CFD code that could "predict" the outcoming flow parameters (particle size, velocity, pressure distributions) for an atomiser/nozzle. The geometry is simple.