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CONVECTIVE HEAT AND MASS TRANSFER IN A NON-NEWTONIAN-FLOW FORMATION IN COUETTE MOTION IN MAGNETOHYDRODYNAMICS WITH TIME-VARING SUCTION

ABSTRACT
An analysis is carried out to study the effect of heat and mass transfer on a non-Newtonian-fluid between two infinite parallel walls, one of them moving with a uniform velocity under the action of a transverse magnetic field. The moving wall moves with constant velocity in the direction of fluid flow while the free stream velocity is assumed to follow the exponentially increasing small perturbation law. Time-dependent wall suction is assumed to occur at permeable surface. The governing equations for the flow are transformed into a system of nonlinear ordinary differential equations by perturbation technique and are solved numerically by using the shooting technique with fourth order Runge-Kutta integration scheme. The effect of non-Newtonian parameter, magnetic pressure parameter, Schmidt number, Grashof number and modified Grashof number on velocity, temperature, concentration and the induced magnetic field are discussed. Numerical results are given and illustrated graphically for the considered Problem.
KEYWORDS
PAPER SUBMITTED: 2009-11-20
PAPER REVISED: 2009-11-29
PAPER ACCEPTED: 2010-02-14
DOI REFERENCE: https://doi.org/10.2298/TSCI091120049S
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2011, VOLUME 15, ISSUE 3, PAGES [749 - 758]
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