droplet interaction
 

Sir how to find out droplet interaction in vaporization processes using cfx-5.6 And for solving such problems ie.if i am considering two droplets which one i have to follow in the following two methods a , create mesh for two droplets, create mesh for droplet surrounding, create mesh for atmosphere, then overlap all things

or b , i have to put all the things in single mesh

and what is the advantage one over other