Nonlinear Effects in Thermoacoustic Pressure Generation Mechanism—Analytic Models

IF 1.1 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

Physics of Wave Phenomena Pub Date : 2024-10-27 DOI:10.3103/S1541308X24700377

A. A. Samokhin, P. A. Pivovarov, L. A. Burtsev

引用次数: 0

Abstract—Influence of nonlinear hydrodynamic effects on formation of pressure pulses investigated in condensed media under pulsed actions leading to fast local variation in their density. In contrast to the ordinary thermoacoustic mechanism where density variation is caused by absorption of the incident radiation energy, models with the given space–time perturbation of density in an incompressible fluid are considered. It is shown how hydrodynamic nonlinearities give rise to transformation of a pressure pulse generated at different perturbation amplitudes and durations.

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热声压力产生机制中的非线性效应--分析模型

摘要-研究了非线性流体力学效应对凝聚介质在脉冲作用下形成压力脉冲的影响，脉冲作用导致凝聚介质密度的快速局部变化。在普通热声机制中，密度变化是由入射辐射能量的吸收引起的，与此相反，我们考虑了不可压缩流体中密度的时空扰动模型。研究显示了流体力学非线性如何导致在不同扰动振幅和持续时间下产生的压力脉冲发生转变。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physics of Wave Phenomena PHYSICS, MULTIDISCIPLINARY-

CiteScore

2.50

自引率

21.40%

发文量

审稿时长

>12 weeks

期刊介绍： Physics of Wave Phenomena publishes original contributions in general and nonlinear wave theory, original experimental results in optics, acoustics and radiophysics. The fields of physics represented in this journal include nonlinear optics, acoustics, and radiophysics; nonlinear effects of any nature including nonlinear dynamics and chaos; phase transitions including light- and sound-induced; laser physics; optical and other spectroscopies; new instruments, methods, and measurements of wave and oscillatory processes; remote sensing of waves in natural media; wave interactions in biophysics, econophysics and other cross-disciplinary areas.