• THERMAL RADIATION EFFECT ON OSCILLATING PLATE TEMPERATURE FLOW OF MICROPOLAR VISCOUS DISSIPATIVE FLUID PAST A VERTICAL POROUS PLATE IN PRESENCE OF COUPLE STRESSES

Abstract

The present work is devoted to investigate the effect of thermal radiation on unsteady two – dimensional oscillatory flow of a polar electrically conducting viscous incompressible Bossinesq fluid past an infinite vertical plate whose temperature varied periodically about a mean constant non – zero value with time in presence of couple stresses and viscous dissipation. The Rosseland approximation is used to describe radiative heat transfer in the limit of optically thick fluids. The governing equations of this class of polar fluids are known to exhibit a boundary layer phenomenon. The dimensionless governing equations for this investigation are reduced to a system of coupled partial differential equations using an efficient finite difference method, and equations are solved numerically. The influence of various flow parameters of the flow field has been discussed and explained graphically. Further, the results obtained under the limiting conditions were found to be in good agreement with the existing one.