ANISOTROPIC DISPERSION OF A CHARGED-PARTICLE SWARM IN A TURBULENT GASIN AN ELECTROSTATIC-FIELD

This paper generalises an earlier result of Saffman (1960) to account for cross effects between turbulent and molecular diffusion for charge d particle swarms in a gas in the presence of an electrostatic field. It is shown that turbulence enhances the anisotropic character of diff usion. The desirability of using a full kinetic theory analysis as aga inst a limited hydrodynamic description of the swarm is discussed, and one possible tractable approach pointed out.