MHD Convection Flow of Kuvshinski Fluid Past an Infinite Vertical Porous Plate with Thermal Diffusion and Radiation Effects

Abstract

The present paper aims at investigating the MHD free convective flow of visco-elastic (Kuvshiniki type) fluid through a porous medium past a semi-infinite vertical moving plate with heat source and Soret effects. The fluid is considered to be gray, absorbing emitting but non scattering medium, and the Rosseland approximation is used to describe the radiative heat flux in the energy equation. A uniform magnetic field of strength acts perpendicular to the porous surface. The governing partial non-linear differential equations of the flow, heat and mass transfer are transformed into ordinary differential equations by using similarity transformations and then solved by simple perturbation technique. The effects of various flow parameters on velocity, temperature and concentration fields as well as the local friction factor, Nusselt number and Shear wood number are discussed and analyzed through graphs and tables.

Keywords: Kuvshinski fluid, Soret number, Moving plate, Free convention, Laminar flow.