Numerical model of bioaerosol transformation in the atmosphere

Abstract

A nonstationary mathematical model of bioaerosol dynamics is considered. It is based on nonlinear integral-differential equations that describe coagulation, condensation, and evaporation processes versus particle sizes. A definitely positive numerical scheme for solution of the problem of aerosol transformation in the atmosphere is presented. The model is numerically compared with the models that describe individual processes in the composition of the former. The relative contribution of each process in the overall dynamics of aerosol populations is studied in numerical experiments.