Nonlinear phenomena of acoustic cloud cavitation

Yoichiro Matsumoto, Shin Yoshizawa, Shu Takagi

研究成果: Conference contribution

抄録

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.

本文言語English
ホスト出版物のタイトルNonlinear Acoustics - Fundamentals and Applications - ISNA18 - 18th International Symposium on Nonlinear Acoustics
ページ237-240
ページ数4
DOI
出版ステータスPublished - 2008 8 15
イベント18th International Symposium on Nonlinear Acoustics, ISNA18 - Stockholm, Sweden
継続期間: 2008 7 72008 7 10

出版物シリーズ

名前AIP Conference Proceedings
1022
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Other

Other18th International Symposium on Nonlinear Acoustics, ISNA18
国/地域Sweden
CityStockholm
Period08/7/708/7/10

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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