Modelling of the diffusive-inertial deposition of aerosol particles: Effect of short-range interactions

Generalised Brownian dynamics algorithm accounting for the short-range inte ractions between a solid aerosol particle and a solid wall was formulated. Correcting functions to the Stokes law for the particle near a solid wall w ere presented. Results of the stochastic simulations of the aerosol particl e deposition on a cylindrical collector in a fibrous filter were compared w ith the classical solutions of the convective - diffusion equation. Effect of the short-range interactions (hydrodynamic interactions particle - wall, van der Waals forces) on the aerosol particle deposition efficiency was di scussed.