Abstract
UNSTEADY HEAT AND MASS TRANSFER IN CONVECTIVE MHD THROUGH A VERTICAL PERMEABLE PLATE IN A POROUS MEDIUM WITH THERMAL RADIATION, CHEMICAL REACTION AND VISCOUS DISSIPATION
Dr. D. Ravi Kumar*
ABSTRACT
In this present article, we analyzed the unsteady MHD flow of viscous, incompressible and electrically conducting fluid past a vertical porous channel under the influence of thermal radiation and chemical reaction. The transformed conservation equations are solved analytically subject to physically appropriate boundary conditions by using two term perturbation technique. It is observed that the velocity is decreased with increasing chemical reaction parameter. Increasing rarefaction parameter increases the velocity and but increasing suction parameter decreases the velocity. The study is relevant to chemical materials processing applications. An analysis to investigate the combined effects of heat and mass transfer on free convection unsteady magneto hydrodynamic (MHD) flow of viscous fluid embedded in a porous medium is presented. The flow in the fluid is induced due to uniform motion of the plate. The influence of a number of emerging non-dimensional parameters namely, Magnetic parameter, Prandtl number, Thermal radiation parameter and Schmidt number examined in detail. Furthermore, the influence of these parameters on heat transfer rate and skin friction is also investigated. The influence of various embedded flow parameters such as the Hartmann number, permeability parameter, Grashof number, dimensionless time, chemical reaction parameter, Schmidt number, and Soret number is analyzed graphically. Numerical solutions for skin friction are also obtained in tabular forms.
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