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- W3094433377 abstract "Abstract : Recent experiments have shown that when the acoustic driving frequency is near one of a bubble's harmonic resonances, the theoretical values predicted by the Rayleigh-Plesset equation are inconsistent with observed values. This inconsistency lead Prosperetti to consider the internal pressure term in the Rayleigh-Plesset equation in a more general manner. In the past the internal pressure of a bubble was assumed to be accurately predicted by a polytropic approximation. Prosperetti considered the internal pressure from the conservation equations, resulting in a much more accurate formulation. This study analyzes the two methods, showing where they agree and where they disagree. The new formulation also provides additional information about the internal thermodynamics of a bubble. Results are shown for the internal temperature of a cavitating bubble as a function of radial coordinate and time. Internal pressures for a variety of conditions are shown and are in good agreement with earlier predicted values. Different models of acoustic cavitation are examined using some of the recent techniques in dynamical systems. 'Feigenbaum trees' were made for the two models. This method for analyzing an equation was shown to be very sensitive to the internal pressure term, and thus is an appropriate method for comparing different acoustic cavitation theories. Keywords: Nonlinear dynamics." @default.
- W3094433377 created "2020-10-29" @default.
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- W3094433377 date "1985-07-01" @default.
- W3094433377 modified "2023-09-26" @default.
- W3094433377 title "A theoretical investigation of acoustic cavitation" @default.
- W3094433377 hasPublicationYear "1985" @default.
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