Experimental Characterization of Induction Electrohydrodynamics for Integrated Microchannel Pumping
Keywords
induction electrohydrodynamics, traveling wave, micropump, microfluidics, fluid delivery, electronics cooling
Abstract
Microscale fluid flow using traveling-wave, induction electrohydrodynamics is demonstrated. A three-phase traveling-wave device fabricated for the experiments provides a temporally and spatially varying electric field which helps induce ions in a fluid that is subjected to a temperature gradient. These ions are moved as the traveling wave propagates, resulting in a drag force being exerted on the surrounding fluid. Repulsion-type electrohydrodynamic flow is visualized in a microchannel of depth 50 μm, and results are presented in terms of velocity measurements using particle image velocimetry. The effects of voltage, traveling-wave frequency, and the addition of externally applied heat are demonstrated and heat transfer capabilities of the micropump are discussed.
Original Publication Citation
Joseph M. Crowley. The efficiency of electrohydrodynamic pumps in the attraction mode. Journal of Electrostatics. Volume 8, Issues 2–3, February 1980, Pages 171-181. doi:10.1016/0304-3886(80)90004-2.
BYU ScholarsArchive Citation
Iverson, Brian D. and Garimella, Suresh V., "Experimental Characterization of Induction Electrohydrodynamics for Integrated Microchannel Pumping" (2009). Faculty Publications. 1583.
https://scholarsarchive.byu.edu/facpub/1583
Document Type
Peer-Reviewed Article
Publication Date
2009
Permanent URL
http://hdl.lib.byu.edu/1877/3502
Publisher
Journal of Micromechanics and Microengineering
Language
English
College
Ira A. Fulton College of Engineering and Technology
Department
Mechanical Engineering
Copyright Status
The Publisher's final version can be found at: http://iopscience.iop.org/0960-1317/19/5/055015/.
Copyright Use Information
http://lib.byu.edu/about/copyright/