keywords: Boundary layer flow, heat generation, magnetic, radiation, stretching surface
This study investigates the effects of internal heat generation, thermal radiation and viscous dissipation on an unsteady hydromagnetic boundary layer flow of a viscous incompressible fluid past a stretching surface embedded in a porous medium. 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 of non-linear differential equations are obtained and the influence of the Permeability of porosity medium parameter, Heat generation parameter, Unsteady parameter, Magnetic parameter, Radiation parameter, Eckert number and Prandtl number on the velocity and temperature profiles are presented graphically and discussed. It was observed that the temperature distribution in the fluid increases with an increase in the value of the permeability of porosity medium parameter while the velocity decreases. Increasing the internal heat generation parameter produced an increase in the temperature distribution of the fluid in the boundary layer. A comparison with previously published literatures for special cases of the problem show excellent agreement.
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