A novel Cantor micromixer with bending mouth structure
摘要
In order to improve the mixing efficiency of the passive mixer, we design a bent Cantor fractal micromixer based on the principle of chaotic convection and folding wave. The influence of Cantor fractal obstacles, inlet velocity and distance from bending mouth to Cantor fractal obstacles are explore on the mixing efficiency. With the increase of the height of the fractal barrier and the inlet velocity, the convective diffusion intensity can be enhanced. However, the residence time of the fluid in the mixer is shortened, which is not conducive to the improvement of the mixing efficiency. Through simulation comparison, when the distance from the bend to the Cantor fractal obstacle is 0.675 mm, the height of the Cantor fractal obstacle is 0.21 mm, and the inlet velocity is 0.6 m/s, the influence of the short fluid residence time can be reduced, and the outlet mixing efficiency of the micromixer can reach the best state.