Dual MHD Convection of Heat and Mass Flow through a Medium with Oscillating Upper Plate

Achogo, Wisdom Hezekiah(PhD), Okereke, Ifeoma Chikamma, Ofomata, Amarachukwu I.O

Abstract

The study investigated thermal transfer in MHD convective flow of Cu-H2O nanofluid in a porous medium with heat generation/absorption. A set of partial differential equations with copper nanoparticles were used. The partial differential equations were non-dimensioned with various dimensionless quantities in order to obtain forms whose solutions can be easily obtained. The partial differential equations were later transformed into ordination differential equations through a two term perturbation technique which were later solved using method of undetermined coefficient to obtain the exact solutions for the energy, concentration and momentum equations. Using the exact solutions; plots were done with the aid of standard parameters to estimate the variational effects of parameters that entered the flow field and from the plots; it was observed that thermal radiation decreased the temperature of the fluid. Heat generation/absorption parameter increased the temperature of the fluid. The effective thermal conductivity increased the temperature of the fluid. Peclet number decreased the velocity of the fluid. Reynolds number decreased the fluid velocity, increasing the Schmidt number, frequency of oscillation increase the concentration of the fluid.

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