Theoretical study of acoustic field caused by single bubble behavior

被引：0

作者：

Meng, Mao ^{[1
]}

Li, Xiao-Bin ^{[1
]}

Zhang, Hong-Na ^{[1
]}

Li, Feng-Chen ^{[1
]}

机构：

[1] Tianjin Univ, Sch Mech Engn, State Key Lab Engines, Tianjin 300350, Peoples R China

来源：

PHYSICS OF FLUIDS | 2024年 / 36卷 / 12期

基金：

中国国家自然科学基金;

关键词：

FINITE-AMPLITUDE VIBRATION; SOUND GENERATION; NOISE PREDICTION; RADIAL MOTION; CAVITATION; TURBULENCE; REDUCTION; HYDROFOIL; EMISSION; CAVITY;

D O I：

10.1063/5.0237504

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Boiling noise is a mode of energy release accompanying bubble dynamics, and its noise characteristic is a potential recognition mode of bubble behavior. In this paper, the angular spectrum method is used to calculate the transient sound field and analyze the noise characteristics induced by single bubble deformation and the classical nucleation growth process theoretically. The relationship between the induced noise intensity and the vibration parameters of the bubble surface is obtained quantitatively. It is shown that bubble volume oscillations and deformation are the main sources of noise, while bubble nucleation-induced noise has limited contribution to noise, and the high-frequency information contained in the bubble surface motion plays a key role in the noise intensity. In addition, in order to analyze the noise characteristics induced by boiling bubbles, a boiling correction is introduced based on the Kirkwood-Bethe (K-B) equation.

引用

页数：11

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