NDLI: Passive In-Plane Micromixer for Slow Diffusing Liquids

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Tafti, Ehsan Yakhshi Kumar, Ranganathan Hyoung, J. Cho
Copyright Year	2009
Abstract	The problem of passive micromixing has been analyzed. Laminar flow in microchannels implies that transport processes including mass transfer are dominated by diffusion; inertial effects and have little to no effect on mixing in small scale conduits. Study of the diffusion theory shows that the velocity at the interface of fluids intended to be mixed is a determining factor. Higher velocity at the diffusion interface increases the mass flux across. By means of unique sidewall design, the laminar velocity profile can be passively altered such that the maximum of the profile coincides with the transversely progressing diffusion fronts repeatedly through the mixing channel. Based on the idea of increasing diffusion interfacial velocity, a passive mixing channel has been designed using numerical simulation tools, fabricated and characterized.
Starting Page	713
Ending Page	717
Page Count	5
File Format	PDF
ISBN	9780791843857
DOI	10.1115/IMECE2009-11618
e-ISBN	9780791838631
Volume Number	Volume 12: Micro and Nano Systems, Parts A and B
Conference Proceedings	ASME 2009 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2009-11-13
Publisher Place	Lake Buena Vista, Florida, USA
Access Restriction	Subscribed
Subject Keyword	Design Fluids Computer simulation Laminar flow Transport processes Diffusion (physics) Mass transfer Microchannels
Content Type	Text
Resource Type	Article

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