Robert Mettin: abstract BJ1
Bjerknes force threshold for stable single bubble sonoluminescence
I. Akhatov, R. Mettin, C.D. Ohl, U. Parlitz, and W. Lauterborn
Drittes Physikalisches Institut, Universität Göttingen,
Bürgerstraße 42-44, D-37073 Göttingen,
An investigation of the primary Bjerknes force acting on a a bubble in
a strong acoustic field is presented. The approach takes into account
the nonlinear resonancelike response of small bubbles to strong
acoustic pressure amplitudes. It is shown that for high pressure
amplitudes even very small bubbles are repelled from the pressure
antinode. This result is in contrast to predictions using Bjerknes
forces based on harmonic bubble oscillations. The relevance of this
high pressure instability for single bubble sonoluminescence
experiments is discussed.
Phys. Rev. E 55, 3747-3750 (1997).
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