Review—Numerical Models for Dilute Gas-Particle Flows

The significant nondimensional parameters relating to dilute gas-particle flows are defined, and a review of the essential features of gas-particle flows from the point of view of model development is presented. Also, the various models that have appeared for one-dimensional and two-dimensional flows are examined, and the advantages and disadvantages of the trajectory and two-fluid models are considered. It is concluded that the most difficult aspect of model development for gas-particle flows is the adequate description of particle dispersion due to turbulence, and that more experimental and complementary numerical work are needed in this area.