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On the deformation of gas bubbles in liquids

Legendre, Dominique and Zenit, Roberto and Velez-Cordero, Rodrigo On the deformation of gas bubbles in liquids. (2012) Physics of Fluids, 24. ISSN 1070-6631

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Official URL: http://dx.doi.org/10.1063/1.4705527


We consider the deformation of gas bubbles rising in different liquids over a wide range of Morton numbers, from O(10−11) to O(1), and bubble diameters. We have collected data from the literature and performed new experiments for relatively large Morton numbers. A simple expression is proposed to describe the evolution of the bubble deformation, which is consistent with the analytical solution of Moore ["The rise of a gas bubble in a viscous liquid," J. Fluid Mech. 6, 113 (1959)]. It appears that deformation can be predicted correctly by considering the Morton and Weber numbers. The variation of the bubble interfacial area is also analyzed; this quantity is very important for the case of bubbly flow modeling but has not been measured directly to date.

Item Type:Article
Additional Information:Thanks to American Institute of Physics editor. The definitive version is available athttp://scitation.aip.org/content/aip/journal/pof2/24/4/10.1063/1.4705527
HAL Id:hal-00921321
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 - Toulouse INP (FRANCE)
Other partners > Universidad Nacional Autónoma de México - UNAM (MEXICO)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
Deposited On:20 Dec 2013 10:25

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