Electrically Induced Shape Oscillation of Drops as a Means of Direct-Contact Heat Transfer Enhancement: Part 2—Heat Transfer

[+] 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), 700-704 (Aug 01, 1988) (5 pages) doi:10.1115/1.3250548 History: Received February 17, 1987; Online October 20, 2009


The heat transfer enhancement caused by the application of a low-frequency (1 ∼ 16 Hz) alternating field having the sinusoidal waveform has been studied experimentally with water drops in a medium of silicone oil. The heat transfer coefficient has been found to peak at three particular frequencies. The data newly obtained with the sinusoidal waveform are compared with earlier results obtained with electric fields having other waveforms. The waveform and the frequency that yield the largest enhancement of heat transfer are sought.

Copyright © 1988 by ASME
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