The Sound of Sonoluminescence

Details The Sound of Sonoluminescence The Sound of Sonoluminescence

1997-12-09

arxiv.org/abs/cond-mat/9712097v1

Phys. Rev. E, 57 (1998) 4170

Physics

Condensed Matter

Soft Condensed Matter

25 pages; LaTex and 6 attached ps figure files. Accepted for publication in Physical Review E

Scientific paper

10.1103/PhysRevE.57.4170

We consider an air bubble in water under conditions of single bubble sonoluminescence (SBSL) and evaluate the emitted sound field nonperturbatively for subsonic gas-liquid interface motion. Sound emission being the dominant damping mechanism, we also implement the nonperturbative sound damping in the Rayleigh-Plesset equation for the interface motion. We evaluate numerically the sound pulse emitted during bubble collapse and compare the nonperturbative and perturbative results, showing that the usual perturbative description leads to an overestimate of the maximal surface velocity and maximal sound pressure. The radius vs. time relation for a full SBSL cycle remains deceptively unaffected.

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