Daughter bubble cascades produced by folding of ruptured thin films

James C. Bird (), Riëlle de Ruiter, Laurent Courbin and Howard A. Stone ()
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James C. Bird: School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA
Riëlle de Ruiter: School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA
Laurent Courbin: Institut de Physique de Rennes, UMR CNRS 6251, Campus Beaulieu, Université Rennes 1, 35042 Rennes, France
Howard A. Stone: School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA

Nature, 2010, vol. 465, issue 7299, 759-762

Abstract: Bubble cascade When a bubble on a liquid–gas or solid–gas interface ruptures, the general expectation — central to theories on foam evolution — is that it just vanishes. Not so, according to new work involving high-speed photography of a bubble-bursting cascade on a glass slide. In many cases, interfacial bubbles do not vanish when they rupture, but instead generate a ring of smaller, daughter bubbles. This occurs via unexpected folding of the ruptured bubble as it retracts, trapping air and leading to the creation of a ring of smaller bubbles. This finding is potentially relevant to a variety of fields, including health care, climate, biotechnology and glass manufacturing.

Date: 2010
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DOI: 10.1038/nature09069

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