| 段润泽,曹一凡,冯紫薇.自由空间内悬挂气泡破碎时的声学特性*[J].,2024,43(1):204-212 |
| 自由空间内悬挂气泡破碎时的声学特性* |
| Acoustic emission process during bubble bursting in free space |
| 投稿时间：2022-09-05 修订日期：2023-12-19 |
| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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. |
| DOI：10.11684/j.issn.1000-310X.2024.01.024 |
| 中文关键词: 气泡破碎 自由空间 声发射 |
| 英文关键词: Bubble bursting Free space Acoustic emission |
| 基金项目: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) |
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