Abstract

In a previous paper [J. Acoust. Soc. Am. Suppl. 1 80, S24 (1986)], experimental measurements of the timing of sonoluminescence (SL) flashes from stable cavitation in gassy water were described. The theory has been extended to examine larger acoustic pressure amplitudes and excellent agreement has been found between the measured and predicted phase angles of the emitted flashes. Since this phase angle is sensitive to the explicit formulation of the equations for bubble dynamics, these data can be used to examine the applicability of various theoretical models. The results of this comparison will be presented and reasons for the inapplicability of certain formulations will be given. [Work supported in part by the NIH and the ONR.]

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