液体中气泡的非线性强迫振荡

IF 0.6 4区物理与天体物理 Q4 MECHANICS

Doklady Physics Pub Date : 2024-02-15 DOI:10.1134/S1028335823080062

A. G. Petrov

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引用次数: 0

摘要

摘要研究了当液体外部压力波动频率等于气泡固有频率（共振）时，液体中气泡的强迫非线性振荡。通过平均法，得出了气体气泡振荡振幅与外部压力振幅、气体热物理特性和液体粘度的关系的简单公式。在气泡半径的振荡幅度值与平衡值相当时，该公式与数值计算结果一致。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Nonlinear Forced Oscillations of a Bubble in a Liquid

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Nonlinear Forced Oscillations of a Bubble in a Liquid

Forced nonlinear oscillations of a gas bubble in a liquid are investigated when the frequency of fluctuations in the external pressure of the liquid is equal to the natural frequency of the bubble (resonance). By the method of averaging, a simple formula is derived for the dependence of the oscillation amplitude of a gas bubble on the amplitude of the external pressure and the thermophysical characteristics of the gas and the viscosity of the liquid. Its good agreement with numerical calculations is shown up to the value of the oscillation amplitude of the bubble radius comparable to its equilibrium value.

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来源期刊

Doklady Physics 物理-力学

CiteScore

1.40

自引率

12.50%

发文量

审稿时长

4-8 weeks

期刊介绍： Doklady Physics is a journal that publishes new research in physics of great significance. Initially the journal was a forum of the Russian Academy of Science and published only best contributions from Russia in the form of short articles. Now the journal welcomes submissions from any country in the English or Russian language. Every manuscript must be recommended by Russian or foreign members of the Russian Academy of Sciences.