利用单极子水平阵列选择性激发波导模式

IF 0.9 4区物理与天体物理 Q4 ACOUSTICS

Acoustical Physics Pub Date : 2023-11-16 DOI:10.1134/S1063771023600730

D. V. Makarov, E. V. Sosedko

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引用次数: 0

摘要

研究了由非定向发射体稀疏水平阵列产生的远场声波场的空间结构。结果表明，该阵列可以选择性地激发声波场的某些模式。激发模式的数目取决于相对于阵列轴的角度。给出了两种波导模型和安装在海底的阵列的数值模拟结果。结果表明，单模态激励效率随模态数的增加而增大。研究了受激模态谱的角依赖性。结果表明，这种依赖关系由与最激发态相对应的几个分支组成。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Selective Excitation of Waveguide Modes Using a Horizontal Array of Monopoles

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Selective Excitation of Waveguide Modes Using a Horizontal Array of Monopoles

The spatial structure of a far-field acoustic wavefield created by a sparse horizontal array of nondirectional emitters is considered. It is shown that the array can selectively excite certain modes of the acoustic wavefield. The number of an excited mode depends on the angle with respect to the array axis. The results of numerical simulation are presented for two models of a waveguide and for an array mounted at the ocean bottom. It is shown that the efficiency of single mode excitation grows with an increase in the modal number. The angular dependence of the excited modal spectrum is studied. It is shown that this dependence consists of several branches corresponding to the most excited modes.

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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.