# Flash nanoprecipitation

A bivariate PBE is implemented for the FNP process to describe the aggregation of the polymers and organics. Due to the nature of the FNP process breakage rarely occurs and thus is neglected in this study. The two environments are solved as passive scalars. In the FNP process, both the polymer and organics are dissolved in the solvent.

In FNP processes, breakage of particles are rarely occurs and thus are neglected. Below are the contours of total number densityof the aggregates, mean mixture population balance for organics, and mean mixture population of polymers.