Buoyancy Effects on Unsteady MHD Flow of a Reactive Third-Grade Fluid with Asymmetric Convective Cooling

This article examines the combined effects of buoyancy force and asymmetrical convective coolingon unsteady MHD channel flow and heat transfer characteristics of an incompressible, reactive,variable viscosity and electrically conducting third grade fluid. The chemical kinetics in the flowsystem is exothermic and the asymmetric convective heat transfers at the channel walls follow theNewton’s law of cooling. The coupled nonlinear partial differential equations governing the problemare derived and solved numerically using a semi-implicit finite difference scheme. Graphical resultsare presented and physical aspects of the problem are discussed with respect to various parametersembedded in the system.