• EFFECT OF RADIATION ABSORPTION ON UNSTEADY CONVECTIVE HEAT AND MASS TRANSFER FLOW OF A VISCOUS FLUID THROUGH A POROUS MEDIUM IN A HORIZONTAL WAVY CHANNEL WITH OSC ILLATORY FLUX AND HEAT SOURCES

Abstract

We investigate the effect of radiation absorption on unsteady free connective heat and mass transfer flow f a viscous, chemically reacting fluid through a porous medium in a horizontal wavy channel The unsteadiness in the flow is due to the oscillatory flux in the flow region. The coupled equations governing the flow, heat and mass transfer have been solved by using a perturbation technique with the slope d of the wavy wall as the perturbation parameter. The velocity, the temperature, the concentration, the rate of heat and mass transfer are derived and are analysed for different variations of the governing parameters b,N,a, k,Q1and g