Acoustic insertion loss by a bubble layer for the application to air bubble curtain and air masker

Cheol-Soo Park, S. Jeong, Gun-Do Kim, I. Moon, G. Yim
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引用次数: 2

Abstract

This paper derives the insertion loss for the bubble layer of an air bubble curtain and an air masker which are used to reduce ocean anthropogenic noise such as the piling noise and the ship noise. The air bubble curtain is considered as a ‘fluid-air bubble layer-fluid’ model and the environment for the air masker is simplified as an ‘vacuum-thin plate-fluid-air bubble layer-fluid’ model. The air bubble layer in each model is assumed as the effective medium which has the complex wavenumber and the complex impedance corresponding to the bubble population distribution. The numerical simulations are performed to examine the insertion loss depending on the bubble population, the void fraction, and the thickness of the layer.
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一种用于气泡幕和空气掩蔽器的气泡层的声插入损耗
本文推导了用于降低海洋人为噪声(如桩噪声和船舶噪声)的气泡幕和空气罩的气泡层的插入损耗。将气泡幕视为“流体-气泡层-流体”模型,将空气罩的环境简化为“真空-薄板-流体-气泡层-流体”模型。假设各模型中的气泡层为有效介质,具有复波数和复阻抗,与气泡种群分布相对应。数值模拟研究了气泡填充、空隙率和层厚对插入损失的影响。
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CiteScore
0.60
自引率
50.00%
发文量
1
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