Robert Mettin: abstract Phys. Fluids ALTMVL01
Collapse and rebound of a laser-induced
I. Akhatov(*), O. Lindau, A. Topolnikov(*), R. Mettin,
N. Vakhitova(*), and W. Lauterborn
(*) Institute of Mechanics,
Ufa Branch of the Russian Academy of Sciences,
Karl Marx Str. 6, Ufa 450000, Russia
Drittes Physikalisches Institut, Universität Göttingen,
Bürgerstraße 42-44, D-37073 Göttingen,
A strong laser pulse that is focused into a liquid produces a
vapour cavity, which first expands and then collapses
with subsequent rebounds. In this paper a
mathematical model of the spherically symmetric motion of a
laser-induced bubble is proposed. It describes gas and liquid
dynamics including compressibility, heat and mass transfer effects
and nonequilibrium processes of evaporation and condensation on
the bubble wall.
It accounts also for the occurrence of supercritical conditions at collapse.
Numerical investigations of the collapse and first rebound
have been carried out
for different bubble sizes. The results show a fairly good
agreement with experimental measurements of the bubble radius evolution and
the intensity of the outgoing shock wave emitted at collapse.
Calculations with a small amount of noncondensable gas inside the
bubble show its strong influence on the dynamics.
Phys. Fluids 13, 2805-2819 (2001).
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A shorter version, presented at
CAV 2001: Fourth International Symposium on Cavitation,
California Institute of Technology, Pasadena, CA USA. June 20-23,
gzip compressed ps-file (105 kB)