| 液体超声驻波声场实验研究 |
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| 引用本文： | 胡淑芳,吴胜举,苏婕,袁媛. 液体超声驻波声场实验研究[J]. 陕西师范大学学报(自然科学版), 2010, 0(1) |
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| 作者姓名： | 胡淑芳 吴胜举 苏婕 袁媛 |
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| 作者单位： | 陕西师范大学物理学与信息技术学院; |
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| 基金项目： | 国家自然科学基金资助项目(1007404210474061) |
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| 摘 要： | 研究了以蒸馏水为介质的驻波声场对微小颗粒群的作用,观察了颗粒群的运动规律,并应用声流和声辐射压力理论对其进行分析.运用谱分析方法,探讨了驻波声场中的空化现象.结果表明,大部分颗粒在声压波腹处聚集,而在声压波节处明显出现了高次谐波,说明空化效应发生在声压波节处.
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| 关 键 词： | 驻波场 颗粒群 声流 声辐射压力 声空化 |
Experiments on ultrasonic standing wave field in liquid |
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| Abstract: | The effect of the standing wave field in distilled water on the tiny particles is studied,the motion behaviour of particles is observed and analysed with the theory of acoustic streaming and radiation pressure.Finally,the cavitation phenomena in the standing wave field is discussed by the method of spectrum analysis.The result indicated that most of the particles are gathered in the pressure loop.But in the pressure node,the ultraharmonics are appeared clearly,which shows the acoustic cavitation occurs in p... |
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| Keywords: | standing wave field particles acoustic streaming acoustic radiation pressure acoustic cavitation |
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