Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevE.84.066307
Title: Interaction of two differently sized oscillating bubbles in a free field
Authors: Chew, L.W.
Klaseboer, E.
Ohl, S.-W.
Khoo, B.C. 
Issue Date: 12-Dec-2011
Source: Chew, L.W.,Klaseboer, E.,Ohl, S.-W.,Khoo, B.C. (2011-12-12). Interaction of two differently sized oscillating bubbles in a free field. Physical Review E - Statistical, Nonlinear, and Soft Matter Physics 84 (6) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevE.84.066307
Abstract: Most real life bubble dynamics applications involve multiple bubbles, for example, in cavitation erosion prevention, ultrasonic baths, underwater warfare, and medical applications involving microbubble contrast agents. Most scientific dealings with bubble-bubble interaction focus on two similarly sized bubbles. In this study, the interaction between two oscillating differently sized bubbles (generated in tap water) is studied using high speed photography. Four types of bubble behavior were observed, namely, jetting toward each other, jetting away from each other, bubble coalescence, and a behavior termed the "catapult" effect. In-phase bubbles jet toward each other, while out-of-phase bubbles jet away from each other. There exists a critical phase difference that separates the two regimes. The behavior of the bubbles is fully characterized by their dimensionless separation distance, their phase difference, and their size ratio. It is also found that for bubbles with large size difference, the smaller bubble behaves similarly to a single bubble oscillating near a free surface. © 2011 American Physical Society.
Source Title: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/60580
ISSN: 15393755
DOI: 10.1103/PhysRevE.84.066307
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