makinde, D.O. and Olanrewaju, P. O.
(2011)
UNSTEADY MIXED CONVECTION WITH SORET AND DUFOUR
EFFECTS PAST A POROUS PLATE MOVING THROUGH A BINARY
MIXTURE OF CHEMICALLY REACTING FLUID.
Chemical Engineering Communications, 198.
pp. 920-938.
ISSN 0098-6445
Abstract
This study investigates the unsteady mixed convection flow past a vertical porous
flat plate moving through a binary mixture in the presence of radiative heat transfer
and nth-order Arrhenius type of irreversible chemical reaction by taking into account
the diffusion-thermal (Dufour) and thermo-diffusion (Soret) effects. Assuming an
optically thin radiating fluid and using a local similarity variable, the governing
nonlinear partial differential equations have been transformed into a set of coupled
nonlinear ordinary differential equations, which are solved numerically by applying
shooting iteration technique together with fourth-order Runge-Kutta integration
scheme. Graphical results for the dimensionless velocity, temperature, and concentration
distributions are shown for various values of the thermophysical parameters
controlling the flow regime. Finally, numerical values of physical quantities, such as
the local skin-friction coefficient, the local Nusselt number, and the local Sherwood
number are presented in tabular form.
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