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| Presentation | 2008-04-25 16:55 Experimental examination on secondary Bjerknes force acting between two bubbles under ultrasound irradiation Takaaki Fujikawa, Kenji Yoshida, Yoshiaki Watanabe (Doshisha Univ.)  US2008-9 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The interactive force called the secondary Bjerknes force works among multiple bubbles under ultrasound irradiation. In this study, we have experimentally examined the direction of the interactive force depending on the distance between two bubbles. When two bubbles vibrate, it is pointed that the direction of the interactive force changes by the influence of the acoustic wave radiated from a bubble vibration to the other bubble vibration. In order to examine this theoretical prediction, the behaviors of both a free bubble and a bubble adhered to the polymer were observed under ultrasound irradiation, using a high-speed video camera. From the results, it was founded that the direction of the interactive force reverses in the certain distance between the two bubbles due to the influence of the radiated acoustic wave. These experimental results give an interesting point of view to understand the dynamics of multiple bubbles. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Bubble / Ultrasound wave / Secondary Bjerknes force / Acoustic radiation force / High-speed video camera / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 19, US2008-9, pp. 45-50, April 2008. | |
| Paper # | US2008-9 | |
| Date of Issue | 2008-04-18 (US) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | US2008-9 |
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| Conference Information | |
| Committee | US |
| Conference Date | 2008-04-25 - 2008-04-25 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | The University of Electro-Communications |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Nonlinear acoustics, etc. |
| Paper Information | |
| Registration To | US |
| Conference Code | 2008-04-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Experimental examination on secondary Bjerknes force acting between two bubbles under ultrasound irradiation |
| Sub Title (in English) | |
| Keyword(1) | Bubble |
| Keyword(2) | Ultrasound wave |
| Keyword(3) | Secondary Bjerknes force |
| Keyword(4) | Acoustic radiation force |
| Keyword(5) | High-speed video camera |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Takaaki Fujikawa |
| 1st Author's Affiliation | Doshisha University (Doshisha Univ.) |
| 2nd Author's Name | Kenji Yoshida |
| 2nd Author's Affiliation | Doshisha University (Doshisha Univ.) |
| 3rd Author's Name | Yoshiaki Watanabe |
| 3rd Author's Affiliation | Doshisha University (Doshisha Univ.) |
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| Speaker | Author-1 |
| Date Time | 2008-04-25 16:55:00 |
| Presentation Time | 30 minutes |
| Registration for | US |
| Paper # | US2008-9 |
| Volume (vol) | vol.108 |
| Number (no) | no.19 |
| Page | pp.45-50 |
| #Pages | 6 |
| Date of Issue | 2008-04-18 (US) |
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