Design and Fabrication of a Three Dimensional Spiral Micromixer

作     者：Jun Yang Li Qi Yi Chen Huimin Maa 

作者机构：Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living Biosys- terns Institute of Chemistry Chinese Academy of Sciences Beo'ing 100190 China University of Chinese Academy of Sciences Beijing 100049 China 

基　　金：We gratefully acknowledge the financial support from Ministry of Science and Technology of China the National Natural Science Foundation of China Chinese Academy of Sciences 

出 版 物：《Chinese Journal of Chemistry》 (中国化学（英文版）)

年 卷 期：2013年第31卷第2期

页      码：209-214页

摘      要：In this work, we present a three dimensional micromixer which consists of two layers of spiral channels overlapped together in the vertical direction. This micromixer is designed by using a smooth channel twisted into double-layer spiral geometry with simple topological structure. Based on the principle of Dean effects, this kind of structure is beneficial to produce, enhance and sustain the Dean vortices, which can perturb the laminar fluid effectively. In order to improve the mixing performance, the detailed parameters have been optimized by using the computational fluid dynamics software. The results indicate that the erect channel which is connected with the two layers of spiral channels plays a critical role for well mixing. Meanwhile, the effect of mixing has been identified in a fabricated glass-micromixer. The mixing efficiency of 90% has been achieved by optimizing the flow rate and the structure of the erect channel. Thus, this micromixer has manifested high mixing efficiency and presents good practicability in the versatile microfluidic systems.

主 题 词：three dimensional (3D) micromixer spiral geometry computational fluid dynamics (CFD) simulation 

学科分类：080706[080706] 080702[080702] 08[工学] 0807[工学-电子信息类] 

核心收录：

D　O　I：10.1002/cjoc.201200922

馆 藏 号：203154953...