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Time-Dependent Electrokinetic Flow in Infinitely Extended Rectangular Microchannels With Slip

[+] Author Affiliations
Jun Yang, Daniel Y. Kwok

University of Alberta, Edmonton, AB, Canada

Paper No. ICMM2003-1041, pp. 351-358; 8 pages
  • ASME 2003 1st International Conference on Microchannels and Minichannels
  • 1st International Conference on Microchannels and Minichannels
  • Rochester, New York, USA, April 24–25, 2003
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-3667-3
  • Copyright © 2003 by ASME


Rectangular microchannel is the most popular shape to be widely used in Microelectromechanical devices. However, analytical solutions of flow in this shape of microchannels are seldom reported because of its two dimensional problem. Furthermore, microflows in microchannels are more difficult to describe. In this paper, we addressed analytically the problem of laminar electrokinetic slip flow in microchannels with rectangular cross-section subjected to a time-dependent pressure gradient and a time-dependent electric field. The analytical solution has been determined based on the Debye-Hückel approximation and its solution is useful to precisely control microflow with slip in rectangular cross-section microchannels.

Copyright © 2003 by ASME



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