MHD BOUNDARY LAYER FLOW PAST A MOVING PLATE WITH MASS TRANSFER AND BINARY CHEMICAL REACTION
AbstractIn this paper the study of heat and mass transfer in unsteady natural convection MHD boundary layer flow past a moving plate with binary chemical reaction is investigated analytically. The fluid limiting surface is moved impulsively, with a constant velocity, either in the direction of the flow or in the opposite direction, in the presence of a transverse magnetic field. Both frequency-dependent effects and ”long-time” effects that would require non-practically long channels to be observed in steady flow was also studied. A mathematical exploration is made into important aspects of reaction engineering in reactive flow, especially residence time flow behaviour, scale-up and scale-down procedures. From the present study it is observed amongst others that temperature increases as the fluid angular velocity increases, maximum temperatures exist in the body of the fluid, concentration increases with an increase in generative chemical reaction and vice-versa and concentration phase decreases with increase in generative chemical reaction. Also, mean velocity was seen to decrease with increase in generative chemical reaction and reaction order, and increases when the limiting surface moves in the positive direction of the flow. The graphical representation of governing flow parameters were presented and discussed. Flow conditions at the wall were also investigated, presented and discussed.
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