A fundamental model has been developed to simulate the dispersion and
trajectories of a high-momentum aerosol jet. The model predicts drople
t evaporation or condensation rates based on heat and mass transfer co
rrelations and on the vapor backpressure or concentration in the plume
. Modeling details are provided here along with a practical strategy f
or tuning the several modules. This approach makes use of decoupled ex
periments and avoids iterative loops. The rainout fraction predicted b
y this model is a sensitive function of the initial drop size.