Thermosolutal Instability of Partially Ionized Plasma in Porous Medium in Presence of Finite Larmor Radius and Hall Currents Effect

Abstract

The effects of finite Larmor radius (FLR), collisions, and Hall currents are investigated on thermosolutal instability of a partially ionized plasma in porous medium in the presence of a uniform vertical magnetic field. In the case of stationary convection, finite Larmor radius, Hall currents, medium permeability and magnetic field may have stabilizing or destabilizing effects but for a certain wave number range, FLR, magnetic field and Hall currents have stabilizing effect only. The stable solute gradient always has a stabilizing effect on the system whereas collisional effects disappear in the case of stationary convection. It is found that the presence of each-magnetic field, FLR, Hall currents and collisions introduces oscillatory modes which were, otherwise, non-existent.\

Keywords: Thermosolutal instability, Partially ionized plasma, FLR, Hall currents, Porous medium