Experimental Analysis of Bubble Shapes During Condensation in Miscible and Immiscible Liquids

[+] Author and Article Information
Haim Kalman

Pearlstone Center for Aeronautical Engineering Studies, Department of Mechanical Engineering, Ben-Gurion University of the Negev, P. O. Box 653, Beer-Sheva, 84105, Israel

Amos Ullmann

Department of Fluid Mechanics and Heat Transfer, Tel Aviv University, Tel Aviv, 69978, Israel

J. Fluids Eng 121(2), 496-502 (Jun 01, 1999) (7 pages) doi:10.1115/1.2822236 History: Received October 24, 1997; Revised March 12, 1999; Online January 22, 2008


The initial volume of a condensing bubble released from an orifice and the shape oscillations of the bubble during the collapse process were studied. Results of a large number of original experiments of bubbles condensing in miscible and immiscible liquids were analyzed to evaluate the initial volume, the instantaneous shape, and the average aspect-ratio of the bubbles. The results were compared to common empirical correlations that were originally developed to evaluate these parameters for noncondensing bubbles. It is demonstrated that such correlations can satisfactorily predict the initial volume of condensing bubbles and their mean aspect ratio throughout the collapse process.

Copyright © 1999 by The American Society of Mechanical Engineers
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