HEAT AND MASS TRANSFER IN A PIPE WITH MOVING SURFACE: EFFECTS OF VISCOSITY VARIATION AND ENERGY DISSIPATION

Abstract

In this study, we investigate the combined effects of viscosity variation and energy dissipation on steady flow of an incompressible fluid in a pipe with moving surface. On the basis of certain simplifying assumptions, the fluid equations of continuity, momentum, energy and concentration are obtained. Analytical solutions are therefore constructed for the problem and important properties of the overall structure of the flow are discussed. The model is appropriate to simulate wind tunnel tests on lubrication phenomenon in engineering systems.