• FINITE ELEMENT ANALYSIS OF SORET AND RADIATION EFFECTS ON TRANSIENT MHD FREE CONVECTION FROM AN IMPULSIVELY STARTED INFINITE VERTICAL PLATE WITH HEAT ABSORPTION

G. Jithender Reddy*, R. Srinivasa Raju, Siva Reddy Sheri

Abstract


This paper investigates the effects of thermal diffusion (Soret) on an unsteady Transient MHD free convective and Heat Transfer of a viscous, incompressible, electrically conducting and heat-absorbing fluid past a suddenly started infinite vertical  plate taking into account the thermal radiation is presented. Assuming the medium to be non scattered and the fluid to be non gray, emitting–absorbing, and optically thin radiation limit properties. The dimensionless governing coupled, non linear boundary layer partial differential equations are solved by an efficient finite element method. Computations are performed for a wide range of some important governing flow parameters, viz., Soret, Thermal radiation parameter, Magnetic field parameter (Hartmann number), Heat source parameter and Schmidt number. The effects of these flow parameters on the velocity, temperature and concentration fields are shown graphically. Finally, the effects of these flow parameters on the skin friction, rate of heat and mass transfer coefficients at the wall are prepared through tabular forms. These findings are in quantitative agreement with earlier reported studies.


Keywords


Heat and Mass transfer, MHD Flows, Thermal diffusion, Radiation and Finite element method.

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