Robert Mettin: abstract DAGA2001

Early stage of bubble dynamics and luminescence in water in a converging shock reflected by a free surface

G. Sankin(*), R. Mettin, R. Geisler. V. Teslenko(*), and W. Lauterborn

(*)Lavrentyev Institute of Hydrodynamics,
pr. ac. Lavrentyeva, 15, 630090 Novosibirsk, Russia

Drittes Physikalisches Institut, Universität Göttingen,
Bürgerstraße 42-44, D-37073 Göttingen, Germany


The focusing and reflection of an acoustic shock wave in water near a free surface and the induced cavitation is investigated experimentally. Ultra high speed photo recording and high resolution pressure and light emission recording is used. The results reveal the shock wave -- bubble interaction resulting in secondary cavitation waves. The correlation between bubble dynamics and luminescence is observed.

in: Fortschritte der Akustik - DAGA 2001, Hrsg. O. v. Estorff,
DEGA Oldenburg (2001), pp. 258-259.
[also on CDROM, ISBN 3-9804568-9-7].

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