Full Content is available to subscribers

Subscribe/Learn More  >

Enhancement of Mixing for Electro-Kinetically Driven Side Channel Type Micromixer

[+] Author Affiliations
Chien-Hsien Wu, Ruey-Jen Yang

National Cheng Kung University, Tainan, Taiwan

Paper No. ICMM2005-75165, pp. 309-316; 8 pages
  • ASME 3rd International Conference on Microchannels and Minichannels
  • ASME 3rd International Conference on Microchannels and Minichannels, Part B cont’d
  • Toronto, Ontario, Canada, June 13–15, 2005
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-4185-5 | eISBN: 0-7918-3758-0
  • Copyright © 2005 by ASME


Electro-osmotic flow (EOF) in microchannels is restricted to low Reynolds number regimes. Since the inertia forces are extremely weak in such regimes, turbulent conditions do not readily develop. Therefore, species mixing occurs primarily by diffusion, with the result that extended mixing channels are generally required. In this paper we present an investigation to predict the optimal applied voltage for the side channel type micromixer (SCTM) which is capable of continuous sample mixing for microfluidic applications. The device uses electrokinetical focusing which is an important EOF phenomenon. In this study, according to the conservation of mass, a simple theoretical model, based on the ‘flow-rate-ratio’ model and Kirchhoff’s law, is first proposed to predict the performance of the device. Computational fluid dynamics simulations are performed to investigate the effect of this model on the mixing efficiency. The results reveal that the mixing efficiency can be enhanced by using ‘flow-rate-ratio’ model and Kirchhoff’s law to predict the optimal applied voltage.

Copyright © 2005 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In