MODELING OF TRAJECTORIES OF PARTICLES PRO JECTED BY GAS-JET ON A FLATSURFACE - COMPARISON WITH SOME EMPIRICAL RESULTS

The purpose of the present paper is the theoretical study of the behav iour of particles conveyed by a gaseous jet onto a flat surface. The c alculations of the trajectories of the particle are made by a Lagrangi an approach by means of a simplified hypothesis on the velocity field of the gas. The model shows that the particles undergo a first collisi on on the surface followed by successive rebounds before final settlin g. The trajectories are studied as a function of operating conditions. The values of the settling locations of the particles are compared fi nally with results derived from two different experimental approaches. A good quantitative agreement is observed.