具有不同弛豫和衰减的流动中的声学迟滞

IF 0.6 4区物理与天体物理 Q4 ACOUSTICS

Archives of Acoustics Pub Date : 2023-07-20 DOI:10.24425/aoa.2022.142896

A. Perelomova

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引用次数: 0

摘要

代表声滞回的热力学平面上的声压与超声密度的图被认为是松弛过程、流动平衡参数和各种波激励器的指标。研究了一些偏离绝热的流动:热传导气体的牛顿流动、振动松弛气体的流动、化学反应的液体电解质流动和宾厄姆塑性流动。考虑了谐波励磁器的总特征频率范围。脉冲声也被考虑在内。讨论了滞回特性与绝热偏差的种类和程度的关系。讨论了声主动流的实例。

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Acoustic hysteresis in flows with different kinds of relaxation and attenuation

Graphs in the thermodynamic plane acoustic pressure versus excess acoustic density representing acoustic hysteresis, are considered as indicators of relaxation processes, equilibrium parameters of a ﬂow, and kinds of wave exciters. Some ﬂows with deviation from adiabaticity are examined: the Newtonian ﬂow of a thermocon-ducting gas, the ﬂow of a gas with vibrational relaxation, the ﬂow of liquid electrolyte with a chemical reaction, and the Bingham plastic ﬂow. The total range of characteristic frequencies of a harmonic exciter is taken into account. The impulsive sound is considered as well. The peculiarities of hysteretic behaviour are discussed in dependence with the kind and degree of deviation form adiabaticity. Examples of acoustically active ﬂows are discussed.

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来源期刊

Archives of Acoustics 物理-声学

CiteScore

1.80

自引率

11.10%

发文量

审稿时长

6-12 weeks

期刊介绍： Archives of Acoustics, the peer-reviewed quarterly journal publishes original research papers from all areas of acoustics like: acoustical measurements and instrumentation, acoustics of musics, acousto-optics, architectural, building and environmental acoustics, bioacoustics, electroacoustics, linear and nonlinear acoustics, noise and vibration, physical and chemical effects of sound, physiological acoustics, psychoacoustics, quantum acoustics, speech processing and communication systems, speech production and perception, transducers, ultrasonics, underwater acoustics.