Discrete particle simulation of gas-solid flows (From dilute to dense flows)

Abstract

Increasing computer power has made discrete particle simulation a practical means for predicting particle motion in industrial processes. Simulation techniques for various particle motions, from dilute to dense phase flows, are explained here. In simulations of this kind, the most important problem is how to model the interactions of particles with walls, with other particles and with the fluid. Calculations based on various models for these interactions are discussed. Particle segregation phenomena, particle mixing in a rotating vessel, dense phase pneumatic conveying, and fluidized bed are shown as examples of simulations which have been made in the author's laboratory.