Title

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.

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