Experimental Characterization of Induction Electrohydrodynamics for Integrated Microchannel Pumping
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.
Keywords
electrohydrodynamics, micropump, integrated, pump
Date of this Version
4-28-2009
Recommended Citation
Iverson, Brian D. and Garimella, S V., "Experimental Characterization of Induction Electrohydrodynamics for Integrated Microchannel Pumping" (2009). Birck and NCN Publications. Paper 347.
https://docs.lib.purdue.edu/nanopub/347