• EFFECT OF QUADRATIC DENSITY TEMPERATURE VARIATION ON UNSTEADY CONVECTIVE HEAT AND MASS TRANSFER FLOW IN A VERTICAL CHANNEL WITH TRAVELLING THERMAL WAVE

Abstract

In this paper, we make an attempt to investigate the unsteady convective Heat transfer flow of a viscous fluid through a porous medium in a vertical channel on whose walls a traveling thermal wave is imposed with quadratic temperature variation. As the governing equations are non-linear in nature, by taking the aspect ratiod as a perturbation parameter the governing equations are solved by using Regular perturbation scheme. The velocity, temperature, stress and rate of heat transfer on y = ± L are evaluated numerically for different variations of G, R, D^-1, S_c, S₀, N, N₁ and x + gt.