SORET AND HALL EFFECT ON UNSTEADY FREE CONVECTION FLOW PAST AN INFINITE VERTICAL PLATE WITH OSCILLATORY SUCTION VELOCITY AND VARIABLE PERMEABILITY

Abstract

An unsteady, two dimensional, free convection flow with heat and mass transfer of a viscous, incompressible, electrically conducting fluid past an infinite vertical porous plate of time dependent permeability with oscillatory suction velocity and chemical reaction in the presence of Hall current effect and Soret effect is investigated. A uniform magnetic field is applied normal to the direction of flow. The dimensionless governing equations are solved using perturbation technique in Eckert number. Numerical evaluation of the analytical solutions is carried out for the velocity field, temperature distribution and concentration distribution. The results obtained are discussed for various emerging parameters such as Prandtl number (Pr), Grashof number (Gr), Modified Grashof number (Gm), Soret number (Sr), Schmidt number (Sc), Sink strength parameter (S), Eckert number (Ec), and Hall parameter (m) encountered in the problem under investigation.