| Project/Area Number |
25630079
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Dynamics/Control
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| Research Institution | Keio University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
|
| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 振動工学 / 超音波 / マイクロバブル / 非線形動力学 / モード局在化 / 非線形振動 / キャビテーション / 分子動力学計算 |
|---|
| Outline of Final Research Achievements |
With a view to clarifying dynamical behaviors of targeted microbubbles and their medical applications, this research tried to clarify nonlinear dynamical behaviors of an insonified bubble analytically, numerically and experimentally, and further investigated dynamical behaviors of a bubble cluster experimentally. Findings of this research include effects of polymer membranes of a bubble on its nonlinear or nonspherical oscillations, effects of a nearby wall surface on subharmonic resonances of a bubble, effects of attachment of a bubble to a wall on its oscillations, dynamical behaviors of a bubble close to a wall and micro-jet generation around the bubble, oscillation mode localization caused by nonlinear interaction between bubbles, and features of translational motion of a bubble cluster showing volume oscillation.
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