This paper presents an analytical analysis to study the effect of chemical reaction on an unsteady MHD flow of an incompressible viscous electrically conducting fluid past an impulsively started vertical plate. A uniform magnetic field is assumed to be applied normal to the plate directed in to the fluid region. The temperature of the plate is made to rise lincarly with time. The fluid considered is gray, absorbing, cmitting-radiation but a non scattering medium. The resulting system of equations governing the flow is solved by adopting Laplace Transform technique in closed form. Detailed computations of the influence of Magnetic field, Radiation, Chemical reaction, Mass Grashof number and Schmidt number at the plate are demonstrated graphically and the results are physically interpreted.
The result shows that chemical reaction has significant effect on the flow and on the heat and mass transfer characteristics.
MHD, chemical reaction, skin friction, radiation
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