does anyone really know how discrete phase model works in fluent?

I use discrete phase model in fluent to inject a single droplet and study its breakup, nevertheless I get differenr results for child drop sizes every time I run the same case, total mass of liquid particles are conserved though. Has anybody ever experienced the same thing? I wonder if I have made any mistakes or if this is in the nature of discrete phase modeling.

yes i also faced similar problem, descrete phase calculation is based on your conuous phase solution.so it is naturally varie with iteration and with run also . but in many cases it is negligible if you take more particles. but in your case you are taking only one particle. hoping for your feed back kiran

well, I found the answer in the KIVA II manual. Fluent basically ,like Kiva, calculates the Sauter mean diameter D32, and then determines drop sizes randomly from a x-square distribution function. that's why we get different drop sizes per run,nevertheless it seems to be reasonable if large number of drops are injected.