Nonlinear ultrasound propagation in a spherical bubble cloud

Shin Yoshizawa; Teiichiro Ikeda; Shu Takagi; Yoichiro Matsumoto

Nonlinear ultrasound propagation in a spherical bubble cloud

Shin Yoshizawa, Teiichiro Ikeda, Shu Takagi, Yoichiro Matsumoto

Research output: Contribution to journal › Conference article › peer-review

Abstract

Recently, HIFU (High Intensity Focused Ultrasound) has attracted much attention in medical applications due to its minimal invasiveness. In HIFU applications, the high pressure amplitude in the ultrasound focal region generates acoustic cavitation. When the cavitation collapses violently, high pressure is generated and cavitation erosion is observed. In order to understand the relationship between the high pressure and nonlinear ultrasound propagation in the bubble cloud, we numerically investigate the oscillation of a bubble cloud which consists of many micro bubbles.

Original language	English
Pages (from-to)	886-889
Number of pages	4
Journal	Proceedings - IEEE Ultrasonics Symposium
Volume	2
Publication status	Published - 2004 Dec 1
Externally published	Yes
Event	2004 IEEE Ultrasonics Symposium - Montreal, Que., Canada Duration: 2004 Aug 23 → 2004 Aug 27

Keywords

Acoustic cavitation
Bubble cloud
Cavitation erosion
Micro bubble
Simulation

ASJC Scopus subject areas

Acoustics and Ultrasonics

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abstract = "Recently, HIFU (High Intensity Focused Ultrasound) has attracted much attention in medical applications due to its minimal invasiveness. In HIFU applications, the high pressure amplitude in the ultrasound focal region generates acoustic cavitation. When the cavitation collapses violently, high pressure is generated and cavitation erosion is observed. In order to understand the relationship between the high pressure and nonlinear ultrasound propagation in the bubble cloud, we numerically investigate the oscillation of a bubble cloud which consists of many micro bubbles.",

keywords = "Acoustic cavitation, Bubble cloud, Cavitation erosion, Micro bubble, Simulation",

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AU - Yoshizawa, Shin

AU - Ikeda, Teiichiro

AU - Takagi, Shu

AU - Matsumoto, Yoichiro

PY - 2004/12/1

Y1 - 2004/12/1

N2 - Recently, HIFU (High Intensity Focused Ultrasound) has attracted much attention in medical applications due to its minimal invasiveness. In HIFU applications, the high pressure amplitude in the ultrasound focal region generates acoustic cavitation. When the cavitation collapses violently, high pressure is generated and cavitation erosion is observed. In order to understand the relationship between the high pressure and nonlinear ultrasound propagation in the bubble cloud, we numerically investigate the oscillation of a bubble cloud which consists of many micro bubbles.

AB - Recently, HIFU (High Intensity Focused Ultrasound) has attracted much attention in medical applications due to its minimal invasiveness. In HIFU applications, the high pressure amplitude in the ultrasound focal region generates acoustic cavitation. When the cavitation collapses violently, high pressure is generated and cavitation erosion is observed. In order to understand the relationship between the high pressure and nonlinear ultrasound propagation in the bubble cloud, we numerically investigate the oscillation of a bubble cloud which consists of many micro bubbles.

KW - Acoustic cavitation

KW - Bubble cloud

KW - Cavitation erosion

KW - Micro bubble

KW - Simulation

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JO - Proceedings - IEEE Ultrasonics Symposium

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T2 - 2004 IEEE Ultrasonics Symposium

Y2 - 23 August 2004 through 27 August 2004

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