针对悬挂式水鸟的流噪声计算分析  

Calculation and Analysis of the Flow Noise of Suspended Water Bird

作　　者：张玉 于大鹏[1] 夏侯命胜 刘松[1] 孙海蛟 ZHANG Yu;YU Dapeng;XIAHOU Mingsheng;LIU Song;SUN Haijiao(School of Naval Architecture&Ocean Engineering,Dalian University of Technology,Dalian 116024,China;The 36th Research Institute of China Electronics Technology Group Corporation,Jiaxing 314033,China;Marine Design and Research Institute of China,Shanghai 200011,China)

机构地区：[1]大连理工大学船舶工程学院,辽宁大连116024 [2]中国电子科技集团公司第三十六研究所,浙江嘉兴314033 [3]中国船舶及海洋工程设计研究院,上海200011

出　　处：《船舶与海洋工程》2022年第6期12-17,24,共7页Naval Architecture and Ocean Engineering

摘　　要：对流噪声进行预报,分析其是否会干扰物探船物探作业的开展。基于Lighthill的声类比理论,以悬挂式水鸟为研究对象,采用计算流体力学方法计算分析水鸟周围的流场分布情况,得到壁面上的脉动压力;将结构表面的脉动压力作为声学边界条件,采用边界元计算方法计算分析水鸟的流噪声分布情况。结合工程实际,通过对计算结果进行分析,认为在给定的工况下,流噪声基本上被环境噪声所湮没,可忽略其对物探船物探作业的影响。The flow noise is predicted to analyze whether it will interfere with the operation of the geophysical prospecting vessel. Based on Lighthill’s acoustic analogy theory, this paper takes suspended water bird as the research object to calculate the flow field distribution around the water bird by using computational fluid dynamics so as to obtain the pulsating pressure on the wall. Then the boundary element method is used to calculate the flow noise distribution of the water bird with the fluctuating pressure on the structure surface as the acoustic boundary condition. The analysis of the calculation results with the actual engineering problems leads to a conclusion that the flow noise is basically annihilated by the environmental noise under the given working conditions, and the impact on the geophysical prospecting operation can be ignored.

关 键 词：物探船 声类比理论 流噪声 计算流体力学 边界元方法 

分 类 号：O422.2[理学—声学] U674.38[理学—物理]