掠流存在下周期性亥姆霍兹谐振器阵列的声传输性能

IF 3.4 2区物理与天体物理 Q1 ACOUSTICS

Applied Acoustics Pub Date : 2025-04-07 DOI:10.1016/j.apacoust.2025.110715

Rong Xue , Cheuk Ming Mak , Chenzhi Cai , Kuen Wai Ma

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引用次数: 0

摘要

本文对有掠流存在时亥姆霍兹谐振腔模型的声学特性进行了实验研究。采用四传声器法测量了该谐振器模型在0 ~ 20 m/s流速下的传输损耗性能，采用粒子图像测速法（PIV）评估了谐振器颈部的流体特性。利用曲线拟合技术推导了流动对谐振腔模型声学性能的影响。建立了一个经验模型来预测掠流存在时亥姆霍兹谐振腔的传输损耗。在传递矩阵法中加入经验模型，预测了周期亥姆霍兹谐振器模型在不同掠流速度下的传输损耗。PIV实验结果揭示了谐振腔模型颈部的流体动力学特性。基于声学和PIV实验分析，本工作可以对周期亥姆霍兹谐振器阵列在掠流存在下的声学性能进行预测。

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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Sound transmission performance of the periodic Helmholtz resonator array in the presence of grazing flow

This paper presents experimental investigations into the acoustic behavior of the Helmholtz resonator model in the presence of grazing flow. The four-microphone method is performed to measure the transmission loss performance of the resonator model under flow speeds of 0–20 m/s, and the particle image velocimetry (PIV) measurement is adopted to evaluate the fluid characteristics of the resonator neck. The flow effect on the acoustic performance of the resonator model is derived by using the curve fit technique. An empirical model is established to predict the transmission loss of the Helmholtz resonator in the presence of the grazing flow. The empirical model is added to the transfer matrix method to predict the transmission loss of the period Helmholtz resonator model under different grazing flow speeds. The PIV experiment results reveal the fluid dynamics in the neck region of the resonator model. Based on the acoustic and PIV experimental analysis, this work can provide a prediction of the acoustic performance of the periodic Helmholtz resonator array in the presence of grazing flow.

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来源期刊

Applied Acoustics 物理-声学

CiteScore

7.40

自引率

11.80%

发文量

618

审稿时长

7.5 months

期刊介绍： Since its launch in 1968, Applied Acoustics has been publishing high quality research papers providing state-of-the-art coverage of research findings for engineers and scientists involved in applications of acoustics in the widest sense. Applied Acoustics looks not only at recent developments in the understanding of acoustics but also at ways of exploiting that understanding. The Journal aims to encourage the exchange of practical experience through publication and in so doing creates a fund of technological information that can be used for solving related problems. The presentation of information in graphical or tabular form is especially encouraged. If a report of a mathematical development is a necessary part of a paper it is important to ensure that it is there only as an integral part of a practical solution to a problem and is supported by data. Applied Acoustics encourages the exchange of practical experience in the following ways: • Complete Papers • Short Technical Notes • Review Articles; and thereby provides a wealth of technological information that can be used to solve related problems. Manuscripts that address all fields of applications of acoustics ranging from medicine and NDT to the environment and buildings are welcome.