Electrically Induced Shape Oscillation of Drops as a Means of Direct-Contact Heat Transfer Enhancement: Part 1—Drop Dynamics

[+] Author and Article Information
N. Kaji

Division of Mechanical Engineering, The Institute of Vocational and Technical Education, Sagamihara 229, Japan

Y. H. Mori

Department of Mechanical Engineering, Keio University, Yokohama 223, Japan

Y. Tochitani

Department of Mechanical Engineering, Kanazawa Institute of Technology, Nonoichi 921, Japan

J. Heat Transfer 110(3), 695-699 (Aug 01, 1988) (5 pages) doi:10.1115/1.3250547 History: Received February 17, 1987; Online October 20, 2009


The shape oscillation of liquid drops passing through an immiscible liquid medium subject to a low-frequency (1 ∼ 16 Hz) alternating electric field having a sinusoidal waveform has been studied experimentally with the intention of investigating the enhancement of the direct-contact heat exchange between the two liquids. We have found that the field can induce, depending on its frequency, not only the resonant oscillation of the second mode of the drops, but also another peculiar oscillation that is related to the resonant oscillation of the third mode superposed on the second-mode oscillation.

Copyright © 1988 by ASME
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