APPLICATION OF DIFFERENTIAL QUADRATURE METHOD AND EVOLUTIONARY ALGORITHM TO MHD FULLY DEVELOPED FLOW OF A COUPLE-STRESS FLUID IN A VERTICAL CHANNEL WITH VISCOUS DISSIPATION AND OSCILLATING WALL TEMPERATURE

摘要

In this paper, fully developed flow of a couple-stress fluid between two long vertical walls in presence of viscous dissipation and radiative heat flux with heat and mass transfer is considered. Temperature and concentration fields at one of the walls are oscillating around a non-zero value. The coupled equations governing the problem are discretized using Differential Quadrature Method, and solved using Newton-Raphson Method and Evolutionary Algorithm hybrid scheme. The expressions for velocity, temperature, and concentration fields for fully developed unsteady flow are obtained.