• EFFECT OF DISSIPATION ON CONVECTIVE HEAT TRANSFER FLOW IN A HORIZONTAL WAVY CHANNEL WITH TRAVELING THERMAL WAVES

Abstract

We investigate with the unsteady hydromagnetic mixed convection flow of a viscous, electrically conducting fluid through a porous medium confined in a horizontal channel bounded by wavy walls. The unsteadiness in the flow is due to the traveling thermal wave imposed on the bounding walls. The concentration on the walls is maintained constant. A uniform magnetic field of strength Ho is applied transverse to the boundaries. The coupled equations governing the flow and heat transfer are solved by using the perturbation technique with , the aspect ratio as a perturbation parameter. The dissipation effects on the velocity, temperature, stress and rate of heat transfer are discussed in detail.