Abstract
Radiation absorption and chemical reaction effects on unsteady MHD free convective flow of a viscoelastic fluid past a vertical porous plate in the presence of variable suction and heat source is considered. A uniform magnetic field is assumed to be applied in the transverse direction of the flow. The set of non-linear partial differential equations is transformed into a set of ordinary differential equations by super imposing a solution with steady and unsteady part. The set of ordinary differential equations is solved by using regular perturbation scheme. The expressions for velocity, temperature and species concentration fields are obtained and the expressions for Skin friction, Nusselt number and Sherwood number are also derived. The effects of numerous physical parameters on the above flow quantities are studied with the help of graphs and tables.
Highlights
MHD free convection fluid flows frequently occur in natural world
Kesavaiah et al [3] studied and presented effects of chemical reaction and radiation absorption on unsteady MHD convection heat and mass transfer flow past a semi-infinite vertical permeable moving plate embedded in porous medium with heat source and suction
Effects of chemical reaction and thermophoresis on MHD mixed convective heat and mass transfer flow along an inclined plate in the presence of heat generation/absorption with viscous dissipation and joule heating was considered by Alam et al [9]
Summary
MHD free convection fluid flows frequently occur in natural world. Fluid passes through porous medium are of great interest nowadays and many researchers attract towards the applications in the fields of science and technology namely in the area of agriculture engineering to know about the ground water resources, in fuel technol-How to cite this paper: Reddy, S.H., Raju, M.C. and Reddy, E.K. (2016) Magneto Convective Flow of a Non-Newtonian Fluid through Non-Homogeneous Porous Medium past a Vertical Porous Plate with Variable Suction. Kesavaiah et al [3] studied and presented effects of chemical reaction and radiation absorption on unsteady MHD convection heat and mass transfer flow past a semi-infinite vertical permeable moving plate embedded in porous medium with heat source and suction. Reddy et al [4] considered effects of chemical reaction and radiation absorption on unsteady magnetohydrodynamic double diffusive convective flow of viscous fluid past a semi-infinite porous plate. Raju et al [5] investigated radiation and mass transfer effects on a free convection flow through porous medium bounded by a vertical surface. Umamaheswar et al [25] investigated unsteady MHD free convective visco-elastic fluid flow bounded by an infinite inclined porous plate in the presence of heat source, viscous dissipation and Ohmic heating. Venkateswarlu et al [30] had presented chemical reaction and radiation absorption effects on the flow and heat transfer of a Nano fluid in a rotating system
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