Mixing enhancement in microchannel by changing parameters of thermal waves using TVEC effect

Abstract

Some basic level familiarity of micro fluidic mixers on their mixing comportment is mandated for the significance of micro reaction in micro mixers. The intention of the research is mainly development and usage of thermo viscous contraction and expansion consequence for the purpose of improving mixing ability in the micro mixers. Properly constant shape of flow in intellect of an average of time may be produced in the channels of the micro mixers by this effect of changing viscosity and density by wandering thermal waves at the opposite walls of channels. For achieving this goal 2D micro channel is well-thought-out in which statistical simulations of anarchy movement of fluid caused by episodic thermal limit state are done with different boundary conditions parameters. In unruly mixing of the fluids the influence of the Strouhal number, Reynold number and the heat dispersion extent estimation are the major aims of the paper. The extent of disorder is assessed by using the vorticity as norms for mixing improvement. It is concluded that the key of the anarchy micro mixing in the micro channels can be well-thought-out this thermal expansion and contraction consequence as a possible mean. We investigate that engulfment as a primary parameter which is necessary to occur with the varying strain rate and vorticity creation in order to enhance mixing. Differential pressure effect on mixing increment is investigated thoroughly which is another source paying role to move the whole domain in micro channel while the thermo viscous expansion and contraction effect causes to mixing improving in micro channel. Final results reveal that the vorticity is predominantly a function of thickness of film and velocity of fluid which are dimensionless, and this whirling motion is created by variation of the viscosity and density of the fluid which is actually because of the difference in temperature at the boundary conditions where heat is transferred from boundary to the fluid flow.