Effects of magnetic field and variable viscosity on forced darcy flow about a flat plate with variable wall temperature in porous media in the presence of suction and blowing
M. A. Seddeek
Cairo University, Cairo 11795, Egypt
Abstract
This paper presents a study of the
effect of a magnetic field and variable
viscosity on steady two-dimensional
laminar Darcy forced convection flow
over a flat plate with variable wall
temperature in a porous medium in the
presence of blowing (suction). The fluid
viscosity is assumed to vary as an
inverse linear function of temperature.
The derived fundamental equations on the
assumption of small magnetic Reynolds
number are solved numerically by using
the finite difference method. The
effects of variable viscosity, magnetic
and suction (or injection) parameters on
the velocity and temperature profiles as
well as on the skin-friction and heat-
transfer coefficients were studied. It
is shown that the magnetic field
increases the wall skin-friction while
the heat-transfer rate decreases.
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