Title
Effect of laminar velocity profile variation on mixing in microfluidic devices: The sigma micromixer
Abbreviated Journal Title
Appl. Phys. Lett.
Keywords
MICROCHANNELS; MIXER; Physics, Applied
Abstract
The effect of the laminar velocity profile and its variation on mixing phenomena at the reduced scale is studied. It is shown that the diffusive mass flux between two miscible streams, flowing laminar in a microchannel, is enhanced if the velocity at their diffusion interface is increased. Based on this idea, an in-plane passive micromixing concept is proposed and implemented in a working device (sigma micromixer). This mixer shows considerable mixing performance by periodically varying the flow velocity profile, such that the maximum of the profile coincides with the transversely progressing diffusion fronts repeatedly throughout the mixing channel.
Journal Title
Applied Physics Letters
Volume
93
Issue/Number
14
Publication Date
1-1-2008
Document Type
Article
DOI Link
Language
English
First Page
3
WOS Identifier
ISSN
0003-6951
Recommended Citation
Tafti, Ehsan Yakhshi; Kumar, Ranganathan; and Cho, Hyoung J., "Effect of laminar velocity profile variation on mixing in microfluidic devices: The sigma micromixer" (2008). Faculty Bibliography 2000s. 1044.
https://stars.library.ucf.edu/facultybib2000/1044
Comments
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"This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in the linked citation and may be found originally at Applied Physics Letters."