Interaction of two differently sized oscillating bubbles in a free field
Name
Chew-2011-Interaction of two differently sized oscillating.pdf
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1.48 MB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Chew, Lup Wai
Klaseboer, Evert
Ohl, Siew-Wan
Khoo, Boo Cheong
Date Issued
December 2011
Journal
Physical Review E
Publisher
American Physical Society
Citation
Chew, Lup Wai et al. “Interaction of Two Differently Sized Oscillating Bubbles in a Free Field.” Physical Review E 84.6 (2011): [11 pages]. ©2011 American Physical Society.
Version
Final published version
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.
MIT Department
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics
Singapore-MIT Alliance in Research and Technology (SMART)
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevE.84.066307
