{"title":"水听器端盖扩展对流动噪声的影响","authors":"Guan Guan, Zhengmao Zhuang, Qu Yang","doi":"10.1007/s40857-021-00247-0","DOIUrl":null,"url":null,"abstract":"<div><p>The flow field around a hydrophone generates self-noise which may contaminate the sound-field detection by a hydrophone. Hence, four hydrophone dome models are designed, and the flow field and sound field around them are compared. The RNG <i>k</i>–<i>ε</i> turbulence model is used for steady calculation. The results show that the four models have a fine diversion effect, and there is no obvious vortex and circumfluence because of them. The Curle model is used to simulate the sound source calculation of the hydrophone dome. The leading edge area of each model is found as the main noise source. The large eddy simulation/FW-H hybrid method is applied for the acoustic field calculation. The flow noise around the four models is studied. By summarizing the results of different models, the rules of flow noise around the hydrophone domes are analyzed. The suggestions for the hydrophone dome design are given based on the comprehensive evaluation of the noise generated by each hydrophone dome.</p></div>","PeriodicalId":54355,"journal":{"name":"Acoustics Australia","volume":null,"pages":null},"PeriodicalIF":1.7000,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s40857-021-00247-0","citationCount":"1","resultStr":"{\"title\":\"The Effects of Hydrophone End-Cap Extension on the Flow-Generated Noise\",\"authors\":\"Guan Guan, Zhengmao Zhuang, Qu Yang\",\"doi\":\"10.1007/s40857-021-00247-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The flow field around a hydrophone generates self-noise which may contaminate the sound-field detection by a hydrophone. Hence, four hydrophone dome models are designed, and the flow field and sound field around them are compared. The RNG <i>k</i>–<i>ε</i> turbulence model is used for steady calculation. The results show that the four models have a fine diversion effect, and there is no obvious vortex and circumfluence because of them. The Curle model is used to simulate the sound source calculation of the hydrophone dome. The leading edge area of each model is found as the main noise source. The large eddy simulation/FW-H hybrid method is applied for the acoustic field calculation. The flow noise around the four models is studied. By summarizing the results of different models, the rules of flow noise around the hydrophone domes are analyzed. The suggestions for the hydrophone dome design are given based on the comprehensive evaluation of the noise generated by each hydrophone dome.</p></div>\",\"PeriodicalId\":54355,\"journal\":{\"name\":\"Acoustics Australia\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.7000,\"publicationDate\":\"2021-07-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1007/s40857-021-00247-0\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Acoustics Australia\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s40857-021-00247-0\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acoustics Australia","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s40857-021-00247-0","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
摘要
水听器周围的流场会产生自噪声，可能会污染水听器的声场检测。为此，设计了四种水听器圆顶模型，并对其周围的流场和声场进行了比较。稳态计算采用RNG k -ε湍流模型。结果表明:四种导流模式均具有良好的导流效果，且不存在明显的旋涡和回流。采用Curle模型对水听器顶盖的声源计算进行了模拟。发现各模型的前缘区域是主要噪声源。采用大涡模拟/FW-H混合方法进行声场计算。研究了四种模型周围的流动噪声。在总结不同模型结果的基础上，分析了水听器圆顶周围流动噪声的规律。在综合评价每个水听器圆顶产生的噪声的基础上，提出了水听器圆顶的设计建议。
The Effects of Hydrophone End-Cap Extension on the Flow-Generated Noise
The flow field around a hydrophone generates self-noise which may contaminate the sound-field detection by a hydrophone. Hence, four hydrophone dome models are designed, and the flow field and sound field around them are compared. The RNG k–ε turbulence model is used for steady calculation. The results show that the four models have a fine diversion effect, and there is no obvious vortex and circumfluence because of them. The Curle model is used to simulate the sound source calculation of the hydrophone dome. The leading edge area of each model is found as the main noise source. The large eddy simulation/FW-H hybrid method is applied for the acoustic field calculation. The flow noise around the four models is studied. By summarizing the results of different models, the rules of flow noise around the hydrophone domes are analyzed. The suggestions for the hydrophone dome design are given based on the comprehensive evaluation of the noise generated by each hydrophone dome.
期刊介绍：
Acoustics Australia, the journal of the Australian Acoustical Society, has been publishing high quality research and technical papers in all areas of acoustics since commencement in 1972. The target audience for the journal includes both researchers and practitioners. It aims to publish papers and technical notes that are relevant to current acoustics and of interest to members of the Society. These include but are not limited to: Architectural and Building Acoustics, Environmental Noise, Underwater Acoustics, Engineering Noise and Vibration Control, Occupational Noise Management, Hearing, Musical Acoustics.
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