微腔体内微泡的声辐射力

doi:10.13438/j.cnki.jdzk.2023.06.005

吉首大学学报（自然科学版） ›› 2023, Vol. 44 ›› Issue (6): 28-31.DOI: 10.13438/j.cnki.jdzk.2023.06.005

微腔体内微泡的声辐射力

田振，孔鹏，邓科

（吉首大学物理与机电工程学院，湖南吉首 416000）

出版日期:2023-11-25 发布日期:2023-12-19
通讯作者: 邓科（1978—），男，湖南湘潭人，吉首大学物理与机电工程学院教授，博士，硕士生导师，主要从事声人工结构研究.E-mail:dengKe@jsu.cn.
作者简介:田振（1995—），男，山东德州人，吉首大学物理与机电工程学院硕士研究生，主要从事凝聚态物理研究
基金资助:
吉首大学校级课题资助项目（JDY21029）

Acoustic Radiation Force of Microbubbles Within Microcavities

TIAN Zhen,KONG Peng,DENG Ke

(College of Physics and Electromechanical,Jishou University,Jishou 416000,Hunan China)

Online:2023-11-25 Published:2023-12-19

摘要/Abstract

摘要：基于微泡声辐射力理论和数值模拟分析微泡的捕获机理，研究微泡在石英微腔体内的声辐射力.结果显示，声场驱动频率低于微泡共振频率时微泡受力方向指向声场极大值，声场驱动频率高于微泡共振频率时微泡受力方向指向声场极小值.有限元仿真结果进一步验证，在同一声场中不同尺寸的微泡所表现出来的共振性质是不同的，较小尺寸的微泡在驻波的作用下往声场极小值的方向移动，较大尺寸的微泡则相反.

关键词： 微泡, 微腔体, 声辐射力, 有限元仿真

Abstract: The trapping mechanism of microbubbles is analyzed based on microbubble acoustic radiation force theory and numerical simulation,and the acoustic radiation force of microbubbles in microcavities is studied.The theoretical analysis showed that when the driving frequency of the sound field is lower than the resonant frequency of the microbubble,the force direction of the microbubble points to the maximum value of the sound field.When the driving frequency of the sound field is higher than the resonant frequency of the microbubble,the force direction of the microbubble points to the minimum value of the sound field.Combined with finite element simulation of the quartz cavity,it is verified that the resonance properties exhibited by microbubbles of different sizes in the same acoustic field are different.Smaller microbubbles move towards the acoustic field minimum under the action of standing waves,while larger microbubbles move in the opposite direction.

Key words: microbubbles, microcavities, acoustic radiation force, finite element simulation

田振, 孔鹏, 邓科. 微腔体内微泡的声辐射力[J]. 吉首大学学报（自然科学版）, 2023, 44(6): 28-31.

TIAN Zhen, KONG Peng, DENG Ke. Acoustic Radiation Force of Microbubbles Within Microcavities[J]. Journal of Jishou University(Natural Sciences Edition), 2023, 44(6): 28-31.

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微腔体内微泡的声辐射力

Acoustic Radiation Force of Microbubbles Within Microcavities

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