Viscous dissipation effects on unsteady free convective flow past an infinite vertical porous plate with variable suction

Abstract

A study of a two-dimensional, unsteady flow of an incompressible, viscous dissipative fluid past an infinite plate with variable suction has been presented. Approximate solutions to the coupled non-linear equations governing the flow are derived and expressions for the fluctuating parts of the velocity, transient velocity and temperature, the amplitude and the phase of the skin-friction and the rate of heat transfer are derived. The mean flow is affected by G (Grashof number),E (Eckert number) and P (Prandtl number) and the fluctuating flow is affected by G, E, P, A (suction parameter) and ω (frequency). During the course of discussion, the mean flow and the fluctuating flow are discussed separately.