Effect of Viscous Dissipation on Natural Convection Flow in a Vertical Parallel-Plate Microchannel with Suction and Injection

Abstract

This paper investigates the effects of viscous dissipation on the hydrodynamic and thermal behaviour of a fully developed natural convection flow in a vertical parallel–plate microchannel with suction and injection by the Homotopy perturbation method. The velocity slip and temperature jump conditions at the walls are taken into account. The influence of viscous dissipation () on the microchannel hydrodynamic and thermal behaviour was discussed with the aid of graphs. The study reveals that the presence () and variation of viscous dissipation parameter in natural convention flow significantly affects the microfluidic system of infinite length and should not be neglected.

Keywords: Natural convection, viscous dissipation, suction and injection.