The underwater acoustic siphon effect is proposed in this work, which aims to reveal the basic physical mechanism of high-efficiency sound absorption in meta-structures composed of multiple detuned units. Furthermore, the influence of the area ratio on the underwater acoustic siphon effect is then investigated by finite element simulation (FES) and theoretical calculation. On this basis, a meta-structure with the maximum absorption coefficient of almost 100% and average absorption coefficient of 80% at 600–1400 Hz is achieved. The underwater acoustic siphon effect could provide a better understanding of high-efficiency sound absorption and offer a new perspective in controlling underwater noises.

中文翻译：

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利用声虹吸效应实现水下超结构高效低频吸声

本文提出了水声虹吸效应，旨在揭示由多个失谐单元组成的超结构高效吸声的基本物理机制。此外，通过有限元模拟（FES）和理论计算研究了面积比对水声虹吸效应的影响。在此基础上，实现了在 600-1400 Hz 时最大吸收系数几乎为 100%、平均吸收系数为 80% 的元结构。水声虹吸效应可以更好地理解高效吸声，并为控制水下噪声提供新的视角。