Radiation Effects on the MHD Mixed FreeForced Convective Flow Past a SemiInfinite Moving Vertical Plate forHigh Temperature Differences
Abstract
This paper investigates the effects of radiation on the MHD mixed freeforced convective steady laminar boundary layer flow of an optically thick electrically conducting viscous fluid, past a moving semiinfinite vertical plate, for large temperature differences. A uniform magnetic field is applied perpendicular to the plate. The density of the fluid is assumed to decrease exponentially with temperature. The usual Boussinesq approximation is neglected due to the large temperature difference between the plate and the fluid. The Rosseland approximation is used to describe the radiative heat flux in the energy equation. With appropriate similarity transformations, the boundary layer equations governing the flow are reduced to ordinary differential equations, which are numerically solved by applying the RungeKutta method with the shooting technique. The effects of the radiation parameter R, the local magnetic parameter Mx and the density/temperature parameter n are examined on the velocity and temperature distributions as well as the coefficients of skinfriction and heat flux.
 Publication:

Physica Scripta
 Pub Date:
 2002
 DOI:
 10.1238/Physica.Regular.066a00071
 Bibcode:
 2002PhyS...66...71E
 Keywords:

 52.30.Cv