Design and Analysis of Micro-Mixer for Enhancing Mixing Performance

Design and analysis of various micro-mixers for enhancing the mixing performance is presented in this. The shape of micro channels is an important design variable to achieve the desired mixing performance. However, if obstacles and wavy channels are included into the channel design, mixing improves. Micro-mixer with obstacles located at the centre of the channel with different configurations is used to enhance mixing performance, so as to reduce the mixing length. Different shapes of obstacles such as rectangle, square and rhombus are analysed by comparing it with plain Y shape circular chamber mixer. For the same boundary conditions, the rectangular obstacles at the centre of the chamber, generally gives minimum mixing length.

Keywords: Micro-mixer, Y channel, Mixing Performance, COMSOL Multiphysics.