Effects of suction and free convection currents on the oscillatory flow past an infinite vertical porous plate with constant heat flux

Abstract

Two-dimensional flow analysis of an incompressible, viscous fluid past an infinite porous vertical plate, in the presence of constant heat flux, has been presented. the effects of suction, free convection currents and free-stream oscillations have been considered and approximate solutions to the coupled non-linear equations have been derived in case of small amplitude oscillations. the solutions are derived for the mean velocity, the mean plate temperature, the mean skin-friction, the transient velocity, the transient temperature, the amplitude and phase of the skin-friction, and the first and second harmonics of the plate temperature. Velocity and temperature fields have been shown graphically whereas the numerical values of the other physical quantities are given in tabular form. During the course of discussion, the effects of γ (suction parameter), G(the Grashof number), E (Eckert number), P (Prandtl number and ω (frequency) have been discussed.