驻波声场中空化气泡之间的相互作用研究  

Interaction between two bubbles in an acoustic standing wave field

作　　者：马艳 赵飞燕 姚曦 MA Yan;ZHAO Feiyan;YAO Xi(Engineering Research Center of Nanostructure and Functional Materials,College of Physics and Electronic Information Engineering,Ningxia Normal University,Guyuan 756000,China;Shaanxi Key Laboratory of Ultrasonics,Shaanxi Normal University,Xi’an 710062,China)

机构地区：[1]宁夏师范学院物理与电子信息工程学院纳米结构及功能材料工程技术研究中心,宁夏固原756000 [2]陕西师范大学物理与电子信息技术学院,西安710062

出　　处：《振动与冲击》2021年第22期92-97,共6页Journal of Vibration and Shock

基　　金：国家自然科学基金(12164037);宁夏高等学校科学研究项目(NGY2020078);宁夏重点研发项目(2020BEB04038);宁夏自然科学基金项目(2021AAC05013)。

摘　　要：该研究从驻波声场特征出发,研究一对气泡在驻波声场中的振动特征及气泡之间的相互作用力。研究结果表明:驻波声场中波腹位置附近的气泡具有强烈的能量转换能力,能够在小振幅声压下做非线性振动,发生剧烈的空化现象,波节位置附近的气泡只做微小的线性振荡;驻波声场中处于波腹位置处的两个气泡之间的相互作用最大,波节位置处两个气泡之间的相互作用力趋于0;驻波声场中两个气泡之间相互作用力的大小和方向取决于两个气泡在驻波声场中的位置、驱动声压振幅、驱动频率和两个气泡的初始半径等因素。The characteristics of bubbles and the interaction between two bubbles were studied based on the characteristics of the acoustic standing wave field.The results show that in the standing wave sound field,the bubbles which are near the antinode position have a strong energy conversion ability.A bubble can vibrate nonlinearly under a small amplitude sound pressure and the cavitation can happen in the acoustic standing wave field.The interaction between two bubbles is the largest at the antinode position,and the interaction between two bubbles at the node position tends to 0.The magnitude and direction of the interaction between two bubbles depend on the amplitude of the driving sound pressure,the driving frequency and the initial radius of the two bubbles in the acoustic standing wave field.

关 键 词：驻波声场 气泡 能量转换 相互作用力 

分 类 号：O426.2[理学—声学]