Abstract
– An unsteady two dimensional magnetohydrodynamic flow of a visco-elastic incompressible fluid (Walters B fluid model) along an infinite hot vertical porous surface bounded by porous medium with free stream as well as suction velocity in the presence of heat surface and chemical reaction has been investigated. The governing equations of motion, energy and concentration are solved by the successive perturbation technique. The flow phenomenon has been characterized by magnetic parameter M , elastic parameter 0 K , porosity parameter P K , Grashoff number for heat transfer r G , Grashoff number for mass transfer c G , Prandtl number r P and Schmidt number c S . The expression for skin friction coefficient, Nusselt number and Sherwood number at the surface are also derived. The variations in the fluid velocity, temperature and concentration are shown graphically where as numerical values of skin-friction; Nusselt number and Sherwood number are presented in tabular form. Key words––Chemical reaction, Heat source, MHD flow, Porous medium, Walters’s Bmodel.
Published Version
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