Abstract
This paper study the effect of radiation on a steady mixed convection flow of a
viscous incompressible electrically conducting and radiating fluid over an isothermal
vertical wedge embedded in a porous medium. The governing nonlinear partial
differential equations and their boundary conditions are transformed into a nonsimilar
form by using a suitable dimensionless variables. The system of nonsimilar equations is
solved numerically using a finite difference method. The present results of local Nusselt
number are compared with previously published work for the case of Darcy solution.
The comparison is found to be in excellent agreement. The present results showed that
as the wedge angle parameter increases the local Nusselt number increases. Increasing
in the value of the square of the Hartmann number leads to decreasing the value of the
local Nusselt number. Increasing in the value of the radiation parameter leads to an
increase in the value of the local Nusselt number. Increasing in the value of the heat
generation parameter leads to decreasing the value of the local Nusselt number.
Increasing in the value of the radiation parameter in the presence of the square of the
Hartmann number and the heat generation parameter has a similar effect on the local
Nusselt number presented above but with less values.
