BREAKUP OF PARTICLES IN A MOVING SUSPENSION ON WALLS

We have theoretically and experimentally investigated the process of b reakup of particles upon repeated interaction of a jet of a particle s uspension with an undeformable wall. We propose a model of the breakup , according to which the particles are fragmented into comparable part s upon multiple impacts against a surface element. Based on numerical analysis of the particle motion in the jet and a statistical calculati on of the probability of repeated impact against a surface element, we obtained the dependence of the mass-average diameter of the particles on the number of trials. The calculation results satisfactorily descr ibe the experimental data obtained for an aqueous suspension of sodium chloride crystals.