声驱动气泡振荡的阻尼机制与声波衰减特性分析

姜羽; 姜根山; 孙建浩; 周子舒

doi:10.19805/j.cnki.jcspe.2026.250003

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声驱动气泡振荡的阻尼机制与声波衰减特性分析

基础研究 | 更新时间：2026-10-10

- 声驱动气泡振荡的阻尼机制与声波衰减特性分析
- Analysis of Damping Mechanism and Acoustic Attenuation Characteristics of Bubble Oscillation Driven by Sound
- 动力工程学报 2026年46卷第4期页码：59-68
- 作者机构：
  
  1. 华北电力大学能源动力与机械工程学院,北京,102206
  2. 华北电力大学数理学院,北京,102206
  3. 华北电力大学河北省物理学与能源技术重点实验室,河北,保定,071003
- 作者简介：
  
  姜羽(1996—),女,辽宁庄河人,博士研究生,研究方向为蒸汽发生器管道泄漏检测。姜根山(通信作者),男,教授,博士生导师,博士,E-mail:gsjiang@ncepu.edu.cn。
- 基金信息：
  
  国家自然科学基金资助项目(12074118,12274122)
- DOI：10.19805/j.cnki.jcspe.2026.250003
  中图分类号： TL353
- 纸质出版：2026
- 稿件说明：
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姜羽, 姜根山, 孙建浩, 周子舒. 声驱动气泡振荡的阻尼机制与声波衰减特性分析[J]. 动力工程学报, 2026, 46(4): 59-68.
姜羽, 姜根山, 孙建浩, 周子舒. 声驱动气泡振荡的阻尼机制与声波衰减特性分析[J]. 动力工程学报, 2026, 46(4): 59-68. DOI： 10.19805/j.cnki.jcspe.2026.250003.

DOI： 10.19805/j.cnki.jcspe.2026.250003

摘要

为了研究蒸汽发生器沸腾区的声传播特性

对高温、高压条件下

声波驱动水中气泡振荡的阻尼机制和气泡引起声波的衰减特性进行了分析。同时基于气泡阻尼理论

结合含气泡水中声传播的线性模型

推导了含气泡水中阻尼和衰减与边界层厚度之间的关系。结果表明:在a0=10-6~10-3 m、f=20~20 000 Hz内

气泡振荡系统处于欠阻尼状态;当a0=10-3 m、$\widetilde{d}$≥0.2时

气泡振荡系统存在过阻尼状态;在高温高压条件下

热阻尼在总阻尼系数中占据主导地位

是引起声波耗散的主要因素;边界层厚度对声波衰减具有显著影响

声波衰减系数随着$\widetilde{d}$的增大先增大后减小。

Abstract

To study the acoustic propagation characteristics in the boiling region of steam generator

the damping mechanism of bubble oscillation in water driven by sound and the acoustic attenuation characteristics induced by bubbles under high temperature and high pressure conditions were analyzed. At the same time

based on the bubble damping theory

and combined with the linear model of acoustic propagation in bubble-containing water

the relationship between the damping and attenuation in bubble-containing water and the boundary layer thickness was derived. Results show that the bubble oscillation system is in an underdamped state at a0=10-6~10-3 m and f=20~20 000 Hz. When a0=10-3 m and $\widetilde{d}$≥0.2

an overdamped state exists in the bubble oscillation system. Under high temperature and pressure conditions

thermal damping dominates the total damping coefficient and is the main factor causing acoustic dissipation. The boundary layer thickness significantly affects the acoustic attenuation

and the acoustic attenuation coefficient increases and then decreases with the increase of $\widetilde{d}$.

关键词

Keywords

references

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