抄録
In this paper, a novel passive mixer for μTAS, which has relatively complex shaped channel, is fabricated by use of MEMS technology. Furthermore, we make a numerical study to investigate the suitable flow conditions for μTAS and the diffusion characteristics of passive mixer by means of curvilinear coordinate transformation techniques. The experimental observation of liquids flow in micromixer is carried out using flow visualization technique. The experimental results of diffusion agree well with the numerical ones. It is revealed that the passive mixer developed here has reasonable performance and that the mixing process can be predicted by the use of technique in computational fluid dynamics.
