Numerical study of the heat transfer from an oscillating bubble

Shin Yoshizawa, John S. Allen, Shu Takagi, Yoichiro Matsumoto

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Recently, ultrasound contrast agents have been used for therapeutic purposes to enhance the heating effect of High Intensity Focused Ultrasound (HIFU). It has been shown that the heat transfer from the bubble is not negligible for medical ultrasound sound conditions. The heat transfer depends on the Peclet number and the shell properties of the bubble as well as the specific heat ratio of the internal gas. We investigate the heat transfer at various Peclet numbers, with or without a shell, numerically. The results show that there is an optimal Peclet number which corresponds to the maximum heat transfer from the bubble to the surrounding medium, and the viscous shell increases the thermal damping due to the heat generation in the shell.

本文言語English
ホスト出版物のタイトル4th International Symposium on Therapeutic Ultrasound
ページ131-133
ページ数3
DOI
出版ステータスPublished - 2005 3 28
外部発表はい
イベント4th International Symposium on Therapeutic Ultrasound - Kyoto, Japan
継続期間: 2004 9 182004 9 20

出版物シリーズ

名前AIP Conference Proceedings
754
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Other

Other4th International Symposium on Therapeutic Ultrasound
国/地域Japan
CityKyoto
Period04/9/1804/9/20

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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