ABSTRACT

This chapter is concerned with motion and deposition of particles, bubbles, or droplets suspended in a fluid. It presents cases of interaction of a suspension with a boundary, under the influence of hydrodynamlc, gravity, and electrostatic forces. The chapter illustrates the case of a circular jet of charged dilute suspension; the principal fluid is neutral and incompressible and the background fluid is identical to the principal fluid of the jet. Earlier work on motion of particles in a fluid in free vortex motion and uniform axial-flow velocity of both phases computed particle trajectories as a basic study on cyclone separators. A simplest nontrivial case of two-dimensional motion of a gas-solid suspension over a flat plate consists of an incompressible gas phase with uniform solid concentration of particles of one size in the free stream only. The chapter deals with cases which account for the simultaneous effects of diffusion and fall-out.