Influence of Different Inlet Conditions on Micromixer

Abstract

This paper presents the influence of different inlet conditions on the performance of micromixer. On the purpose of obtaining the internal flow fields and mixing characteristics, there are 28 micromixers with different structural parameters have been studied by numerical simulations. The influence of different inlet conditions on the mixing performance of micromixers with periodic triangle baffles and rectangle baffles was examined by experiments. The results of experiment and numerical simulation were completely discussed and analyzed. The consistency between results of experiment and numerical simulation proves the reliability of research method and the accuracy of numerical simulation. It also indicates that different numbers of inlets have significant effects on the mixing performance of micromixers. The optimum inclination angles of inlets for each kind of micromixer were obtained under different conditions. For optimizing or designing passive micromixers, it is an effective way to improve the performance of micromixers by increasing the number of inlets or changing the angle of the inlets.