Robert Mettin: abstract ISNA delay

Dynamics of delay-coupled spherical bubbles

R. Mettin, S. Luther, S. Kamphausen, and W. Lauterborn

Drittes Physikalisches Institut, Universität Göttingen,
Bürgerstraße 42-44, D-37073 Göttingen, Germany


Abstract

The behavior of mutually coupled cavitation bubbles might change considerably when a finite speed of sound propagation in the liquid is taken into account. This holds for the radial oscillations of the bubbles as well as for the interaction (Bjerknes) forces between them. Starting from linear analysis of the equations of motion, nonlinear bubble dynamics is investigated numerically. Some results are reported for illustration of effects that might have significant impact on the modeling of cavitation structures in certain parameter regimes.


to appear in:
W. Lauterborn and T. Kurz (eds.):
Proceedings of the 15th International Symposium on Nonlinear Acoustics
Göttingen, Germany 1-4 Sept. 1999


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