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Sensors 2009, 9(7), 5379-5389;

Biophysical Micromixer

Department of Mechanical and Electromechanical Engineering, Center of Green Technology, National I-Lan University, I Lan, 26047, Taiwan
Author to whom correspondence should be addressed.
Received: 11 May 2009 / Revised: 26 June 2009 / Accepted: 29 June 2009 / Published: 8 July 2009
(This article belongs to the Section Chemical Sensors)
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In this study a biophysical passive micromixer with channel anamorphosis in a space of 370 mm, which is shorter than traditional passive micromixers, could be created by mimicing features of vascular flow networks and executed with Reynolds numbers ranging from 1 to 90. Split and recombination (SAR) was the main mixing method for enhancing the convection effect and promoting the mixing performance in the biophysical channel. The 2D numerical results reveal that good mixing efficiency of the mixer was possible, with εmixing = 0.876 at Reynolds number ration Rer = 0.85. Generally speaking, increasing the Reynolds number will enhance the mixing. In addition, the sidewall effect will influence the mixing performance and an optimal mixing performance with εmixing = 0.803 will occur at an aspect ratio of AR = 2. These findings will be useful for enhancing mixing performance for passive micromixers. View Full-Text
Keywords: passive micromixer; biophysical micromixer passive micromixer; biophysical micromixer
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Wang, C.-T.; Hu, Y.-C.; Hu, T.-Y. Biophysical Micromixer. Sensors 2009, 9, 5379-5389.

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