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Micromachines 2010, 1(1), 19-33; doi:10.3390/mi1010019

Evaluation of Floor-grooved Micromixers using Concentration-channel Length Profiles

1
Department of Chemical Engineering, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
2
Institute for Microstructural Science, National Research Council Canada, Ottawa, Ontario K1A 0R6, Canada
3
Canadian Food Inspection Agency, Ottawa Laboratory Fallowfield, Ottawa, Ontario K2H 8P9, Canada
*
Authors to whom correspondence should be addressed.
Received: 13 March 2010 / Accepted: 11 May 2010 / Published: 17 May 2010
(This article belongs to the Special Issue Micromixers)
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Abstract

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.
Keywords: micromixer; numerical simulation; concentration profile; mixing completion length micromixer; numerical simulation; concentration profile; mixing completion length
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Du, Y.; Zhang, Z.; Yim, C.; Lin, M.; Cao, X. Evaluation of Floor-grooved Micromixers using Concentration-channel Length Profiles. Micromachines 2010, 1, 19-33.

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