Hall effect on MHD flow of visco-elastic fluid layer heated for below saturating a porous medium

Abstract

In this paper the problem of visco-elastic fluid layer heated from below in the presence of uniform vertical magnetic field with Hall current in porous medium is discussed here and obtained a dispersion relation. Using normal mode analysis, from this dispersion relation, we observed that the medium permeability k1 has destabilizing effect, the magnetic field has stabilizing effect and this stabilizing effect is independent of Hall current, Hall parameter has destabilizing effect and the sufficient condition for the non-existence of over-stability are given as .