Semiempirical model of impact interaction of a disperse impurity particle with a surface in a gas suspension flow

A mathematical model describing the dynamics of impact of a spherical particle on a solid surface is proposed and investigated. In closing the model, use is made of the experimental mean statistical values off the coefficients of restitution of the components of the velocity vector of the center of mass of the particle normal and tangential to the surface. The model permits a physically correct description of particle rotation upon impact and determination of its angular rotational velocity