Impact-driven cavitation bubble dynamics

The dynamics of a single cavitation bubble exposed to a transient acceleration is studied experimentally. A single cavitation bubble is seeded with a pulsed laser in a free-falling and impacting water-filled test tube. After impact, a pressure wave containing compression and rarefaction phases is ge...

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Bibliographic Details
Published in:Experiments in fluids 2023-02, Vol.64 (2), Article 27
Main Authors: Bao, Hengzhu, Reuter, Fabian, Zhang, Hongchao, Lu, Jian, Ohl, Claus-Dieter
Format: Article
Language:English
Subjects:
Acceleration
Cavitation
Elastic waves
Engineering
Engineering Fluid Dynamics
Engineering Thermodynamics
Fluid- and Aerodynamics
Heat and Mass Transfer
Longitudinal waves
Mathematical models
Pulsed lasers
Rarefaction
Research Article
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Summary:The dynamics of a single cavitation bubble exposed to a transient acceleration is studied experimentally. A single cavitation bubble is seeded with a pulsed laser in a free-falling and impacting water-filled test tube. After impact, a pressure wave containing compression and rarefaction phases is generated and interacts with the bubble. The bubble dynamics is studied with high-speed imaging and compared to numerical simulations using the Keller–Miksis model. The timing of bubble seeding with respect to the pressure wave is varied, and a regime of enhanced collapse strength is found.
ISSN:0723-4864
1432-1114
DOI:10.1007/s00348-023-03569-z