Abstract
A complete symmetry group for the Rayleigh equation used as a basis for the theoretical description of acoustic cavitation is found, which allows the form of an external drive giving rise to internal dynamic symmetry in gas bubble pulsation to be determined. The efficiency of bubble extension under the action of a periodically prolonged scale-invariant external acoustic field is studied. It is demonstrated that this action, having the form of a train of shock waves, does not lead to a significant decompression. This circumstance significantly reduces the probability of damaging biological tissues as a result of cavitation caused by the extension phase of a shock pulse.
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Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 31, No. 7, 2005, pp. 7–13.
Original Russian Text Copyright © 2005 by Maksimov.
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Maksimov, A.O. Maximum size of a gas bubble in the regime of automodel pulsation. Tech. Phys. Lett. 31, 270–273 (2005). https://doi.org/10.1134/1.1920368
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DOI: https://doi.org/10.1134/1.1920368