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EFFECT OF VARIABLE VISCOSITY AND THERMAL CONDUCTIVITY OF MICROPOLAR FLUID IN A POROUS CHANNEL IN PRESENCE OF MAGNETIC FIELD

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Author(s): GITIMA PATOWARY

Journal: International Journal for Basic Sciences and Social Sciences
ISSN 2319-2968

Volume: 1;
Issue: 3;
Start page: 69;
Date: 2012;
Original page

Keywords: Unsteady flow | radiation | stretching sheet | variable viscosity | variable thermal conductivity | porous channel.

ABSTRACT
A numerical model to study the effect of thermal radiation on unsteady boundary layer flow with variable viscosity and thermal conductivity due to stretching sheet in porous channel in presence of magnetic field has been developed. To describe the radiative heat flux in the energy equation Rosseland diffusion approximation is used. The governing equations reduced to similarity boundary layer equations using suitable transformations and then solved using Rungakutta method. A parametric study illustrating the influence of the radiation, variable viscosity, Darcy number, porous media inertia coefficient, thermal conductivity, unsteady parameters on skin friction, Nusselt number and Magnetic field parameter.
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