Keywords: Couette?Poiseuille flow, parallel plates, slip flow, second law, entropy, temperature jump, first law, thermodynamics analysis, laminar forced convection, heat transfer, Newtonian fluids, microchannels, exergy
Entropy generation analysis for Couette?Poiseuille flow through parallel-plates microchannel
This paper presents the first and second laws of thermodynamics analysis for laminar forced convective heat transfer of a Newtonian fluid in a microchannel between parallel plates. Hydrodynamically and thermally fully developed flow with constant properties is examined. Two different forms of the thermal boundary-conditions are considered. The velocity and temperature profiles are analytically determined as a function of the Brinkman and the Knudsen number. The present results are in an excellent agreement with those available in the literature. Entropy generation is shown to decrease with an increase in Kn while increasing Br and Br/Ω results in increasing entropy generation.