Turbulence and capillary waves on bubbles

Peleg Emanuel, Alexander Feigel

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

We present a link between the theory of deep water waves and that of bubble surface perturbations. Theory correspondence is shown analytically for small wavelengths in the linear regime and investigated numerically in the nonlinear regime. To do so, we develop the second-order spatial perturbation equations for the Rayleigh-Plesset equation and solve them numerically. Our code is publicly available. Studying capillary waves on stable bubbles, we recreate the Kolmogorov-Zakharov spectrum predicted by weak turbulence theory, putting wave turbulence theory to use for bubbles. In this investigation, it seems that curvature does not affect turbulent properties. The calculated bubble surface responds qualitatively to low gravity experiments. The link demonstrated opens new possibilities for studying several bubble phenomena, including sonoluminescence and cavitation, using the extensive tools developed in the wave turbulence framework.

Original languageAmerican English
Article number025108
JournalPhysical Review E
Volume104
Issue number2
DOIs
StatePublished - Aug 2021

Bibliographical note

Publisher Copyright:
© 2021 American Physical Society.

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