Effect of nuclei concentration on cavitation cluster dynamics

Cavitation cluster dynamics after the passage of a single pressure wave is studied for different concentrations of artificial cavitation nuclei (30 to 3 × 10 5 nuclei ∕ ml ). With increasing concentration of cavitation nuclei the lifetime of the cavitation cluster is prolonged. Additionally, it is f...

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Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2007-06, Vol.121 (6), p.3432-3436
Main Authors: Arora, M., Ohl, C. D., Lohse, D.
Format: Article
Language:English
Subjects:
Acoustics
Cluster Analysis
Contrast Media
Electricity
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
High-Energy Shock Waves
Kinetics
Mathematics
Models, Theoretical
Physics
Pressure
Underwater sound
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Summary:Cavitation cluster dynamics after the passage of a single pressure wave is studied for different concentrations of artificial cavitation nuclei (30 to 3 × 10 5 nuclei ∕ ml ). With increasing concentration of cavitation nuclei the lifetime of the cavitation cluster is prolonged. Additionally, it is found that the spatial extent of the cluster decreases with higher nuclei concentration. The experimental data for concentrations less than 400 nuclei ∕ ml are compared to simulations with a Rayleigh-Plesset-type equation, taking into account bubble-bubble interaction. For higher concentrations (more than 1000 nuclei ∕ ml ) the observed radial cluster dynamics is compared with calculations from an axisymmetric cavity-collapse model.
ISSN:0001-4966
1520-8524
DOI:10.1121/1.2722045