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Interaction and coalescence of large bubbles rising in a thin gap

Huisman, Sander and Ern, Patricia and Roig, Véronique Interaction and coalescence of large bubbles rising in a thin gap. (2012) Physical Review E, 85 (2). 027302-1.

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Official URL: http://link.aps.org/doi/10.1103/PhysRevE.85.027302

Abstract

We present accurate measurements of the relative motion and deformation of two large bubbles released consecutively in a quiescent liquid confined in a thin-gap cell. Although the second injected bubble was smaller, we observed that, in all cases, it accelerated and caught up with the leading bubble. This acceleration is related to the wake of the leading bubble, which also induces significant changes in the width and curvature of the trailing bubble. On the contrary, the velocity of the leading bubble is unaltered during the whole interaction and coalescence process. Shape adaptation of the two bubbles is observed just prior to coalescence. After pinch-off, the liquid film is drained at a constant velocity.

Item Type:Article
Additional Information:Thanks to American Physical Society editor. The definitive version is available at http://www.aps.org The original PDF of the article can be found at PHYSICAL REVIEW E website : http://link.aps.org/doi/10.1103/PhysRevE.85.027302
HAL Id:hal-00786408
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: Véronique ROIG
Deposited On:06 Feb 2013 10:10

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