Study of Resonant Peak Characteristics of Flow-Induced Noise in Small-Aperture Cavity

IF 1.3 3区物理与天体物理 Q3 ACOUSTICS

Journal of Theoretical and Computational Acoustics Pub Date : 2022-12-01 DOI:10.1142/s2591728521500298

Zhenan Song, Daoqing Chang, Hongling Sun

引用次数: 0

Abstract

The influences of the length and width of small-aperture cavity are calculated with the [Formula: see text]–[Formula: see text] model and large eddy simulation on the frequencies of resonant peaks of flow-induced cavity noise at different flow velocities in water. The calculated results show that the semi-empirical Rossiter formulas are only suitable for large-aperture models. For small-aperture cavity models, the resonance peak frequencies predicted by these formulas deviate greatly from the corresponding numerical results. In addition, as the length of cavity opening decreases, the minimum flow velocity gradually increases, at which a resonant peak just appears. Finally, the range of this minimum flow velocity is given for the different opening lengths.

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小孔径腔内流致噪声共振峰特性研究

采用[公式:见文]-[公式:见文]模型和大涡模拟计算了小孔径空腔长度和宽度对水中不同流速下流致空腔噪声共振峰频率的影响。计算结果表明，半经验Rossiter公式只适用于大孔径模型。对于小孔径空腔模型，这些公式预测的共振峰值频率与相应的数值结果偏差较大。此外，随着空腔开孔长度的减小，最小流速逐渐增大，此时刚好出现一个共振峰。最后，给出了不同开孔长度下的最小流速范围。

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

Journal of Theoretical and Computational Acoustics Computer Science-Computer Science Applications

CiteScore

2.90

自引率

42.10%

发文量

期刊介绍： The aim of this journal is to provide an international forum for the dissemination of the state-of-the-art information in the field of Computational Acoustics. Topics covered by this journal include research and tutorial contributions in OCEAN ACOUSTICS (a subject of active research in relation with sonar detection and the design of noiseless ships), SEISMO-ACOUSTICS (of concern to earthquake science and engineering, and also to those doing underground prospection like searching for petroleum), AEROACOUSTICS (which includes the analysis of noise created by aircraft), COMPUTATIONAL METHODS, and SUPERCOMPUTING. In addition to the traditional issues and problems in computational methods, the journal also considers theoretical research acoustics papers which lead to large-scale scientific computations.