| 超声场中气泡融合的影响因素分析 |
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| 引用本文： | 焦俊杰,何勇,何源,潘绪超,王传婷.超声场中气泡融合的影响因素分析[J].声学学报,2016,41(6):851-856. |
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| 作者姓名： | 焦俊杰 何勇 何源 潘绪超 王传婷 |
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| 作者单位： | 南京理工大学 南京 210094 |
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| 基金项目： | 国家青年自然科学基金项目(11504173)和南京理工大学自主科研专项计划项目(30915118806)资助 |
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| 摘 要： | 采用高速摄影机对不同声压和频率作用下接触气泡的融合时间进行了实验研究,运用实验和数值计算相结合的方法分析了次Bjerknes力和最大径向振动速度对气泡融合时间的影响,结果表明在不同的超声声压和频率作用下,气泡的融合时间会随着次Bjerknes力和最大径向振动速度的增大而增大,对两个因素进行对比分析得到次Bjerknes力是影响气泡融合的关键因素。
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| 收稿时间： | 2015-04-13 |
Analysis on the factors that influence bubble coalescence in an acoustic field |
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| Institution: | Nanjing University of Science and Technology |
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| Abstract: | The coalescence time between two contacting bubbles was measured experimentally in different acoustic pressures and frequencies using an imaging system with a high-speed video camera, and taken an analysis to the influence of secondary force and maximum oscillation velocity on the coalescence time of two contacting bubbles in this paper. It was found that under the action of different acoustic pressure and frequency, the coalescence time increase with secondary force and maximum oscillation velocity. Analyzed the influence of bubble coalescence time to compare secondary Bjerknes force and maximum oscillation velocity used the fitting formula shown that the secondary Bjerknes force are the critical factor to affect the bubble coalescence. |
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