Page 50 - 《应用声学》2022年第4期

第 41 卷 第 4 期 Vol. 41, No. 4
2022 年 7 月 Journal of Applied Acoustics July, 2022

⋄ 研究报告 ⋄

曲面固壁附近空化泡溃灭动力学的

流体体积数值研究 ∗

单鸣雷 1,2† 杨 雨 1 邱顺俐 1 束方勇 1 韩庆邦 1,2

(1 河海大学常州市传感网与环境感知重点实验室并江苏省输配电装备技术重点实验室 常州 213022)
(2 江苏省 “世界水谷” 与水生态文明协同创新中心 南京 211100)
摘要：流体体积法可以便捷、高效地实现对多相流界面的捕捉和追踪。该文基于流体体积方法，对单个空化泡
在曲面固壁附近的运动进行了数值模拟，从实验对比、压力场、速度场、温度场演化、溃灭时间、射流速度、固壁
温度等方面分析了空化泡溃灭过程的热动力学影响。结果表明，数值模拟得到的空化泡形态演化与实验观测
到的现象一致，随着位置参数、泡内外压差及曲面固壁尺寸的改变，空化泡热动力学行为也将发生变化，受到
流体运动及射流冲击的影响，溃灭瞬间产生的高温高压使得曲面固壁温度升高。该文研究的曲面固壁附近空
化泡溃灭效应，揭示了空化泡与曲面固壁间的相互作用规律，对学术研究及工程应用都具有重要意义。
关键词：流体体积方法；空化泡；温度；曲面固壁
中图法分类号: TB559; O426.4 文献标识码: A 文章编号: 1000-310X(2022)04-0548-10
DOI: 10.11684/j.issn.1000-310X.2022.04.006

Numerical study of cavitation bubble collapse dynamics near a curved wall
by the volume of fluid method

SHAN Minglei 1,2 YANG Yu 1 QIU Shunli 1 SHU Fangyong 1 HAN Qingbang 1,2
(1 Changzhou Key Laboratory of Sensor Networks and Environmental Sensing, Jiangsu Key Laboratory of Power Transmission
and Distribution Equipment Technology, Hohai University, Changzhou 213022, China)
(2 Jiangsu Provincial Collaborative Innovation Center of World Water Valley and Water Ecological Civilization,
Nanjing 211100, China)

Abstract: The volume of fluid (VOF) method can capture and track the interface of multiphase flow conve-
niently and efficiently. It can be used to study the thermal dynamic characteristics of cavitation bubble collapse
near the curved solid wall. Based on the VOF method, the motion of a single cavitation bubble near the curved
solid wall is numerically simulated. The thermodynamic effects of cavitation bubble collapse process are ana-
lyzed from variation aspects, such as the experimental comparison, pressure field, velocity field, temperature
field, collapse time, jet velocity and solid wall temperature. The results show that the thermodynamic behavior
of the cavitation bubbles is affected by adjusting the position parameters, the pressure difference between the
inside and outside of the bubble and the size of the curved solid wall. Under the influence of fluid motion and
jet impingement, the high temperature and pressure generated at the moment of cavitation bubble collapsing
increases the temperature of curved solid wall. The collapse effect of cavitation bubble near the curved solid
wall studied in this paper reveals the interaction between the cavitation bubble and the curved solid wall, which
is of great significance for academic research and engineering application.
Keywords: The volume of fluid method; Cavitation bubble; Temperature; Curved solid wall

2021-06-23 收稿; 2021-09-07 定稿
国家自然科学基金项目 (11874140)
∗
作者简介: 单鸣雷 (1977– ), 男, 山东菏泽人, 博士, 副教授, 研究方向: 声学与通信技术。
† 通信作者 E-mail: shanming2003@126.com