During its propagation, a shock wave may come across and interact with different perturbations, including acoustical waves. While this issue has been the subject of many studies, the particular acoustic-acoustic interaction between a weak shock and a sound wave has been very scarcely investigated. Here, a theory describing the encounter of those two waves is developed, up to second- and third-order. According to the incidence angle and shock strength, several regimes of acoustic transmission through the shock are identified. The generation of entropy as well as vorticity modes are determined, while the perturbation of the shock front by the acoustic wave is quantified. The theory predicts strongly different behaviors between air and water, and preliminary results are coherent with recent experimental observations in solids. It paves the way to both an acoustic monitoring of shock wave as well as a method to determine the quadratic and cubic nonlinear parameters of material.

François Coulouvrat

Ronan Delalande

Mathieu Ducousso

The Journal of the Acoustical Society of America

自 1929 年以来，《美国声学学会杂志》一直是广泛的跨学科声音研究中理论和实验研究成果的主要来源。学科覆盖范围包括：线性和非线性声学；气动声学、水下声音和声学海洋学；超声波和量子声学；建筑和结构声学和振动；语音、音乐和噪音；听力心理学和生理学；工程声学、转换；生物声学，动物生物声学。

Since 1929, the Journal of the Acoustical Society of America has been a major source of theoretical and experimental research findings in the broad field of interdisciplinary sound studies. The journal covers a wide range of subjects, including linear and nonlinear acoustics; aeroacoustics, underwater sound, and acoustic oceanography; ultrasonics and quantum acoustics; architectural and structural acoustics and vibrations; speech, music, and noise; auditory psychology and physiology; engineering acoustics and transduction; and bioacoustics, including animal bioacoustics.

自1929年以来，《Journal of the Acoustical Society of America》一直是跨学科声音研究中理论与实验研究成果的重要来源。该期刊涵盖的学科包括：线性与非线性声学；气动声学、水下声学及声学海洋学；超声波与量子声学；建筑声学、结构声学与振动；语音、音乐与噪音；听力心理学与生理学；工程声学与转换；生物声学及动物生物声学。

Category	Quartile
物理与天体物理	2
物理与天体物理, 声学	3
物理与天体物理, 听力学与言语病理学	3

Nonlinear interaction of an acoustical wave with a counter-propagating weak shock

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Journal Info

Category	Quartile
AUDIOLOGY & SPEECH-LANGUAGE PATHOLOGY	1