Dynamics of chain particle aggregates in viscous flow

Abstract

The dynamics of aggregates consisting of chains of particles and their union in the form of a two-dimensional network in viscous flow is numerically simulated. It is assumed that the particles in a chain can move relative to each other so that the distance between two neighboring ones remains unchanged. The hydrodynamic interaction forces between all particles in an aggregate are taken into account. The deposition of particle chains and their dynamics in a linear flow are considered in the case an unbounded fluid volume and near a flat wall. The interaction forces between the particles necessary for retaining them in a chain are calculated, and places of the most probable breakage in the chain are determined.