Nonlinear phenomena of acoustic cloud cavitation

Yoichiro Matsumoto, Shin Yoshizawa, Shu Takagi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Acoustic cavitation, which is normally consisted of bubble cluster, has an important role in various fields such as medical, environmental, industrial applications. The strong pressure appears in the case of bubble cluster like a cloud cavitation. As the dynamics of bubbles are strongly influenced by the thermal phenomena inside the bubbles, these phenomena are considered to numerically investigate the behavior the bubble cloud. The pressure wave focuses to the center of the cloud and the pressure inside bubbles extremely increases when the frequency of the pressure wave is near the first mode natural frequency of the cloud. Due to the strong nonlinearity of the pressure wave propagation in the bubbly liquid, a sinusoidal wave changes to the steep waveform in the cloud and it generates high pressure fluctuation near the center of the cloud even when the frequency is much lower than the first mode frequency.

Original languageEnglish
Title of host publicationNonlinear Acoustics - Fundamentals and Applications - ISNA18 - 18th International Symposium on Nonlinear Acoustics
Pages237-240
Number of pages4
DOIs
Publication statusPublished - 2008 Aug 15
Event18th International Symposium on Nonlinear Acoustics, ISNA18 - Stockholm, Sweden
Duration: 2008 Jul 72008 Jul 10

Publication series

NameAIP Conference Proceedings
Volume1022
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other18th International Symposium on Nonlinear Acoustics, ISNA18
CountrySweden
CityStockholm
Period08/7/708/7/10

Keywords

  • Acoustic cavitation
  • Bubble cloud
  • Bubble dynamics
  • Bubbly liquid

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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