Acoustic signal associated with the bursting of a soap film which initially closes an overpressurized cavity

V. Vidal, J.-C. Géminard (), T. Divoux and F. Melo

The European Physical Journal B: Condensed Matter and Complex Systems, 2006, vol. 54, issue 3, 321-339

Abstract: We report an experimental study of the sound produced by the bursting of a thin liquid film, which initially closes an overpressurized cylindrical cavity. There is a need for a deep understanding of the phenomenon, which can be very useful in numerous practical cases. For instance, in the nature, the volcanologists observe the bursting of large, elongated, gas-bubbles at the surface of lava lakes and record the associated sound emission. One can wonder which pieces of information they can get from such acoustic measurements. For a didactic purpose, we provide also the reader with all the theoretical background necessary for the understanding of the physical processes that govern the various characteristics of the acoustic signals: the cavity geometry governs the frequency; the viscous dissipation and the radiation are responsible for the damping; the acoustic energy informs about the characteristic time associated with the film-rupture more than about the energy initially loaded in the cavity. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2006

Keywords: 68.15.+e Liquid thin films; 43.20.Mv Waveguides; wave propagation in tubes and ducts; 43.20.Ks Standing waves; resonance; normal modes; 91.40.Yt Remote sensing of volcanoes (search for similar items in EconPapers)
Date: 2006
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DOI: 10.1140/epjb/e2006-00450-0

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