Published Paper Details:

Flow through microchannels are of substantial importance as on date due to its multi-dimensional applications in modern electronic industries, Micro Electro Mechanical Systems (MEMS) as well as micro biological systems and various other applications. Hence, systematic studied are required for proper understanding of the flow behavior within a microchannel. In the present work, fluid flow and heat transfer characteristics within a microchannel of rectangular cross section is considered. The reduced form of the Navier-Stokes equation is valid for flow within microchannel as well. Thus, the Navier-Stokes and energy equations subjected to slip boundary conditions are solved by adopting various approximate analytical techniques. The velocity and temperature distributions are obtained under slip boundary conditions. The results obtained have been presented along a particular section of the channel and compared with the numerical solutions. By varying the aspect ratio of the channel, the accuracy of different approximate techniques has also been compared. It is observed that the accuracy level for the velocity as well as temperature profiles obtained in each technique depends on the aspect ratio.