Abstract
AbstractFluid flow behavior and heat transfer characteristics of pressure driven flow in partially heated microchannels have been investigated using the explicit Finite Volume Method (FVM). The developed flow solver utilizes the compressible Navier‐Stokes (NS) system of equations with Maxwell's first order slip boundary condition and the corresponding temperature jump relation derived by von Smoluchowski to achieve the solutions. The effects of Knudsen number and gas species have been studied for partially heated microchannels similar to the classical Graetz problem. The existence of nonlinear pressure distribution and dominant heat diffusion for higher Knudsen number regime are predicted by the solution. The fluid flow and heat transfer characteristics of the partially heated microchannels greatly depend on the transport properties of the medium under similar flow conditions.
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