Nonlinear Formation of Low-Frequency Field by Diffracting High-Frequency Wave Beams

IF 1.2 4区物理与天体物理 Q4 ACOUSTICS

Acoustical Physics Pub Date : 2025-05-21 DOI:10.1134/S1063771025600123

O. V. Rudenko

引用次数: 0

Abstract

The universal theory of “parametric” sound emitters is presented, taking into account the attenuation and diffraction of interacting waves in the quasi-optical approximation. Expressions are given that describe the structure of the low-frequency field excited by high-frequency waves with arbitrary amplitude and phase distributions on the surface of pump transducers. Universal formulas for calculating directivity patterns are given. The dynamics of pattern formation is described. The results of calculating the regime of highly distorted pump waves containing shock fronts are presented.

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高频波束衍射低频场的非线性形成

在准光学近似中考虑了相互作用波的衰减和衍射，提出了“参数”声发射体的通用理论。给出了在泵换能器表面具有任意振幅和相位分布的高频波激发下的低频场结构的表达式。给出了计算指向性图的通用公式。描述了图案形成的动力学过程。给出了含激波前的高畸变泵浦波的状态计算结果。

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

Acoustical Physics 物理-声学

CiteScore

1.60

自引率

50.00%

发文量

审稿时长

3.5 months

期刊介绍： Acoustical Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It covers theoretical and experimental aspects of basic and applied acoustics: classical problems of linear acoustics and wave theory; nonlinear acoustics; physical acoustics; ocean acoustics and hydroacoustics; atmospheric and aeroacoustics; acoustics of structurally inhomogeneous solids; geological acoustics; acoustical ecology, noise and vibration; chamber acoustics, musical acoustics; acoustic signals processing, computer simulations; acoustics of living systems, biomedical acoustics; physical principles of engineering acoustics. The journal publishes critical reviews, original articles, short communications, and letters to the editor. It covers theoretical and experimental aspects of basic and applied acoustics. The journal welcomes manuscripts from all countries in the English or Russian language.