Abstract: An analytical study is performed to examine the effects
of thermal- diffusion and radiation on unsteady free convective flow over a
moving vertical plate with mass transfer in presence of magnetic field. The
fluid considered here is gray, absorbing/emitting radiation but a non-scattering
medium. The plate temperature is raised linearly with time t
and the concentration level near the plate is raised to The dimensionless governing
equations are solved using the Laplace transform technique. Results for
velocity, temperature, concentration, skin-friction, the rate of heat transfer
and the rate of mass transfer are shown graphically. The results are discussed
in terms of the parameters M (the
magnetic field parameter), Gr (the
thermal Grashof number), Gm (the mass
Grashof number), R (the radiation
parameter), Pr (the Prandtl number), Sc
(the Schmidt number) and So (the Soret
number).
Keywords and phrases: magnetic field, radiation, vertical plate, thermal diffusion.
