Statistical models of clustering of particles in wall and isotropic turbulent flows

Statistical models are given of the dispersion of inertial particles in inhomogeneous wall turbulence and homogeneous isotropic turbulence. The models are based on the kinetic equations for the one-point and two-point probability density functions of particle velocities. Comparison is made with the data of direct numerical calculations for channel and isotropic flows, known from the literature.