International Journal of Applied Science and Technology

ISSN 2221-0997 (Print), 2221-1004 (Online) 10.30845/ijast

Effects of Thermal Radiation on Magnetohydrodynamic (MHD) Flow of a Micropolar Fluid towards a Stagnation Point on a Vertical Plate
Olanrewaju, P.O.; Okedayo, G. T.; Gbadeyan, J. A.

Abstract
The steady MHD mixed convection stagnation point flow towards a vertical surface immersed in an incompressible micropolar fluid in the presence of thermal radiation is investigated. The external velocity impinges normal to the wall and the wall temperature is assumed to vary linearly with the distance from the stagnation point. The governing partial differential equations are transformed into a system of ordinary differential equations, which is then solved numerically due to nonlinearity of the system by a shooting technique alongside with sixth order Runge-Kutta iteration scheme. The features of the flow and heat transfer characteristics for different values of the embedded flow parameters are analyzed and discussed. Both assisting and opposing flows are considered. We made comparison with Ishak et al [1] upper solution being the only stable solution in the absence of radiation and there were perfect agreement. The heat transfer rate and the skin friction were discussed extensively.

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