COLLISION PROBABILITIES IN CONCENTRATED SUSPENSIONS - 2-DIMENSIONAL CASE

A two-dimensional model is presented for a randomly moving disk repres enting a colloidal particle in a concentrated suspension. The probabil ity that it will be intercepted by some neighboring particle is calcul ated with a random number generation scheme. Neighboring particles are allowed to move freely on an outer circle, without being able to over lap. This work is a first probabilistic attempt at studying rapid coag ulation kinetics in concentrated suspensions; future studies will incl ude three-dimensional simulations and interaction forces. (C) 1995 Aca demic Press, Inc.