The flow and heat transfer of an
incompressible viscous electrically conducting fluid over a continuously moving
vertical infinite plate with uniform suction and heat flux in porous medium,
taking account of the effects of the variable viscosity, has been considered.
The solutions are obtained for velocity, temperature, concentration and skin
friction. It is found that the velocity increases as the viscosity of air or
porous parameter increases whereas velocity decreases when Schmidt number
increases. The skin friction coefficient is computed and discussed for various
values of the parameters.
This study investigates a mixed convection boundary layer flow over a
vertical wall embedded in a highly porous medium. The fluid viscosity is
assumed to decrease exponentially with temperature. The boundary layer
equations are transformed into a non-similar form using an appropriate non-similar
variable ξ and a
pseudo-similar variable η. The non-similar
equations are solved using an efficient local non-similarity method. The effect
of viscosity variation parameter on the heat transfer, skin friction and the
velocity and temperature distribution within the boundary layer is
investigated. The viscosity variation parameter, the viscous dissipation
parameter and non-simi-larity variable are shown to have a significant effect
on velocity and thermal boundary layer and also on the skin friction
coefficient and heat transfer at the wall.