Page 208 - 《应用声学》2024年第1期

第 43 卷 第 1 期 Vol. 43, No. 1
2024 年 1 月 Journal of Applied Acoustics January, 2024

⋄ 研究报告 ⋄

自由空间内悬挂气泡破碎时的声学特性 ∗

段润泽 1,2† 曹一凡 1 冯紫薇 1

(1 河北工业大学能源与环境工程学院 天津 300401)
(2 河北省热科学与能源清洁利用技术重点实验室 天津 300401)

摘要：气泡破碎是自然界和工、农业生产中常见的现象。气泡在破碎过程中因气流流动而产生强烈的扰动，导
致破碎时产生强烈的气动声学。该文采用实验和理论相结合的方式对自由空间内悬挂气泡破碎时的声学特性
进行了研究。研究发现：随着液体表面张力系数的增加，声发射的特征振幅逐渐增大；随着气泡半径的增加，声
发射的特征振幅逐渐增大。理论计算结果与实验结果基本吻合。
关键词：气泡破碎；自由空间；声发射
中图法分类号: O359+.1 文献标识码: A 文章编号: 1000-310X(2024)01-0204-09
DOI: 10.11684/j.issn.1000-310X.2024.01.024

Acoustic emission process during bubble bursting in free space

DUAN Runze 1,2 CAO Yifan 1 FENG Ziwei 1

(1 School of energy and environment engineering Hebei University of Technology, Tianjin 300401, China)
(2 Hebei Key Laboratory of Thermal Science and Energy Clean Utilization, Tianjin 300401, China)

Abstract: Bubble bursting is a common phenomenon in nature and industrial and agricultural production.
During the bursting process, bubbles are strongly disturbed by air flow, which leads to strong aero-acoustics.
In this paper, the acoustic characteristics of suspended bubbles bursting in free space are studied by combining
experiment with theory. It is found that with the increase of liquid surface tension coefficient, the characteristic
amplitude of acoustic emission gradually increases. With the increase of bubble radius, the characteristic
amplitude of acoustic emission gradually increases. The theoretical calculation results are basically consistent
with the experimental results.
Keywords: Bubble bursting; Free space; Acoustic emission

2022-09-05 收稿; 2023-02-23 定稿
∗ 国家自然科学基金项目 (12042211, 51276055, 51806057), 天津市科技计划项目 (22YDTPJC00200, 18YFCZZC00250, 19YFZCsF00850),
河北省自然基金项目 (A2022202010, E2019202460), 河北工业大学 (张北) 产业技术研究院课题 (ZBYJY201902)
作者简介: 段润泽 (1984– ), 男, 山西临汾人, 博士, 副教授, 硕士生导师, 研究方向: 液体雾化, 燃烧。
通信作者 E-mail: duanrunze@hebut.edu.cn
†