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Home  >  Volume 38

14, Unsteady MHD Boundary Layer Flow and Heat Transfer Due to Stretching Sheet in the Presence of Thermal Radiation and Viscous Dissipation by Falana A. and Ramonu O.J Volume 38, (November, 2016), pp 89 – 98
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Abstract

This study investigates the effects of radiation and viscous dissipation on an unsteady Magnetohydrodynamic (MHD) boundary layer flow of a viscous incompressible fluid over a stretching sheet. Using the similarity transformation, the governing time dependent boundary layer equations are transformed to ordinary differential equations, before being solved numerically using a fourth order Runge-Kutta method. The solutions the of non-linear differential equations are obtained and the influence of the unsteady parameter, Magnetic parameter, Radiation parameter, Eckert number and Prandtl number on the velocity and temperature profiles are presented graphically and discussed. The magnetic field flux was observed to increase the skin friction coefficient at the surface due to the presence of Lorentz force which opposes the flow and leads to enhanced deceleration of the velocity profiles(rate of flow is considerably reduced) while an increase in radiation  increases the temperature profile.A comparison with previously published literatures for special cases of the problem show excellent agreement.

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