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MHD Mixed Convective Heat Transfer of a Micropolar Fluid Over an Unsteady Stretching Porous Wedge with Viscous Dissipation and Joule Heating

Tarikul Islam, Muhammad Minarul Islam

Abstract


This study investigate numerically heat and mass transfer characteristics of two dimensional unsteady MHD mixed convective flow of a micropolar fluid along a stretchin permeable wedge taking into account the effects of viscous dissipation and Joule heating with convective boundary condition.The governing partial differential equations are transferred into ordinary differential equations using a set of non-dimensional variables and solve them numerically by Nachtsheim-Swigert shooting iteration technique with sixth order Runge-Kutta method. Effects of non-dimensional governing parameters on velocity, microrotation and temperature profiles are presented through graphs and discussed from physical point of view. The local skin friction coefficient, plate couple stress and the rate of heat transfer is also investigated for the different values of the pertinent parameters. The results show that both the rate of share stress and the rate of heat transfer increase with the increase of Hartmann number and Eckert number for both suction and injection cases.


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References


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