To gain understanding of the two-phase vertical gas–solid flow behaviour, the equations of gas–solid suspension flow are used to develop a model to predict the radial profiles of the volumetric fraction and the velocity of the solid particles. We derived two coupled differential equations...

The Chapman–Enskog approach is applied to a generalised Fokker–Planck equation for the ensemble-averaged phase-space number density of particles to find a closure approximation for the third-order fluctuating velocity correlations in the particle phase of a turbulent dilute gas-particulate...

Based on the equations, constitutive relations and boundary conditions of the kinetic theory of colliding particles in a gas-solid suspension, the approximate theory of the steady, developed vertical flow of a gas-particulate mixture is developed for the case of moderate gas pressure gradient in...