Evaluation of Floor-grooved Micromixers UsingConcentration-channel Length Profiles

Micromachines

Yan Du¹  Zhiyi Zhang²  ChaeHo Yim¹  Min Lin³ 

[1] Department of Chemical Engineering, University of Ottawa, Ottawa, ON K1N 6N5 Canada;Institute for Microstructural Science, National Research Council Canada, Ottawa, ON K1A 0R6 Canada;Canadian Food Inspection Agency, Ottawa Laboratory Fallowfield, Ottawa, ON K2H 8P9 Canada

关键词: micromixer;    numerical simulation;    concentration profile;    mixing completion length;   

DOI  :  10.3390/mi1010019

来源: mdpi

【 摘 要 】

We evaluated the dynamic micromixing performances in slanted groove micromixers (SGM) and staggered herringbone micromixers (SHM) and quantitatively compared their differences using concentration vs. channel length profiles obtained from numerical stimulations. It is found that faster and finer mixing took place in the SHM and the chaotic mixing was more effective at locations closer to the grooves; in comparison, slower and coarser mixing occurred throughout the whole channel of the SGM. Subsequently, the concentration profile-based characterization method was demonstrated in hybrid floor-grooved micromixers to study the interaction of SGM and SHM.

【 授权许可】

CC BY   
© 2010 by the authors; licensee MDPI, Basel, Switzerland.