Abstract
Flows of two- or three-component viscous plasma between parallel flat plates and in a circular tube in the presence of a pressure gradient and an electric field parallel to the flow are investigated theoretically. Electrical neutrality, frozen ionization, uniform temperature and uniform number densities are assumed since the present work is concerned with the eases for which Mach number is small. The velocity profiles are decomposed into three modes: linear, parabolic and exponential. The last one yields boundary layers whose thicknesses are of the order of the mean free path. It is shown that the electric current is induced not only by the electric field but also by the pressure gradient.