TY - JOUR
TI - Convective heat and mass transfer in a non-Newtonian-flow formation in Couette motion in magnetohydrodynamics with time-varing suction
AU - Salama Faiza A
JN - Thermal Science
PY - 2011
VL - 15
IS - 3
SP - 749
EP - 758
PT - Article
AB - 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.