水下涡流发生器产生噪声的计算研究
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- 英文论文题名：Numerical calculation of noise from underwater vortex generator
- 论文作者：刘永伟 ; 付圣峰 ; 张峻铭 ; 商德江 ; 李琪
- 英文论文作者：LIU Yong-wei ; FU Sheng-feng ; ZHANG Jun-ming ; SHANG De-jiang ; LI Qi ; Acoustic Science and Technology Laboratory ; Harbin Engineering University ; College of Underwater Acoustic Engineering ; Harbin Engineering University
- 年：2016
- 作者机构：哈尔滨工程大学水声技术重点实验室;哈尔滨工程大学水声工程学院;
- 论文关键词：涡流发生器 ; 辐射噪声 ; 流噪声 ; 数值计算 ; 声学评价
- 英文论文关键词：vortex generator ; radiation noise ; fluid noise ; numerical calculation ; acoustic evaluation
- 会议召开时间：2016-10-28
- 会议录名称：2016年全国声学学术会议论文集
- 语种：中文
- 分类号：U661.44
- 学会代码：OGSM
- 会议名称：2016年全国声学学术会议
- 会议地点：中国湖北武汉
- 主办单位：中国声学学会
- 学会名称：中国声学学会
- 页数：4
- 文件大小：472k
- 原文格式：D
- 会议级别：全国
摘要
舰船高速航行时,船体易发生流体边界层分离、空化,产生很大的噪声。应用涡流发生器可抑制边界层分离、降低空化噪声。涡流发生器在抑制边界层分离、降低空化噪声的同时,自身还产生两种噪声:一是涡流发生器自身振动产生的辐射噪声,即流激噪声;二是涡流发生器形成的大量涡发放产生的辐射噪声,即流噪声。由于应用环境和对象的不同,空气中很少涉及涡流发生器产生的辐射噪声和流噪声。然而,船舶只能依靠声波实现水下探测,必须要考虑由涡流发生器产生的辐射噪声和流噪声。本文以涡流发生器作为研究对象,采用数值仿真研究涡流发生器受流激励产生的振动辐射噪声和涡发放产生的流噪声,研究结果可揭示涡流发生器产生辐射噪声和流噪声的变化规律,为涡流发生器的优化设计提供一种声学评价的方法。
The boundary layer of fluid separates and cavitates, then, noise has been generated, when the ship runs at higher speed. The vortex generator can be used to restrain the separation of boundary layer, and reduce the noise of cavitation. However, two kinds of noises are generated. The first is radiation noise. When the fluid flushes vortex generator, vortex generator vibrates and radiates noise. The second is fluid noise. The vortex, which is generated by vortex generator, stirs and crumbles, also, radiates noise. Due to different environments, the radiation noise and fluid noise have been neglected and paid not enough attention to, especially in the air. Nevertheless, acoustic wave is the only signal in underwater detection. The radiation noise and fluid noise from underwater vortex generator must be considered. In the paper, the calculation model of underwater vortex generator has been built up in the software. The radiation noise and fluid noise from vortex generator have been numerically simulated. The results have demonstrated the changing law of radiation noise and fluid noise from vortex generator. It is believed that an acoustic evaluation method of optimizing vortex generator has been given.
The boundary layer of fluid separates and cavitates, then, noise has been generated, when the ship runs at higher speed. The vortex generator can be used to restrain the separation of boundary layer, and reduce the noise of cavitation. However, two kinds of noises are generated. The first is radiation noise. When the fluid flushes vortex generator, vortex generator vibrates and radiates noise. The second is fluid noise. The vortex, which is generated by vortex generator, stirs and crumbles, also, radiates noise. Due to different environments, the radiation noise and fluid noise have been neglected and paid not enough attention to, especially in the air. Nevertheless, acoustic wave is the only signal in underwater detection. The radiation noise and fluid noise from underwater vortex generator must be considered. In the paper, the calculation model of underwater vortex generator has been built up in the software. The radiation noise and fluid noise from vortex generator have been numerically simulated. The results have demonstrated the changing law of radiation noise and fluid noise from vortex generator. It is believed that an acoustic evaluation method of optimizing vortex generator has been given.
引文
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[2]孙一峰,杨士普.短舱涡流发生器流动控制机理初探[J].技术研究,2012,104:3-16.SUN Yifeng,YANG Shipu,Preliminary investigation on flow control mechanisms of nacelle strake[J].Technology Research,2012,104:3-16.
[3]褚胡冰,张彬乾,陈迎春,等.微型涡流发生器控制SCCH增升构型流动分离研究[J].中国科学:技术科学,2012,42(8):945-956.CHU Hubing,ZHANG Binqian,CHEN Yingchun,et al.Investigation of micro vortex generators on controlling flow seperation over SCCH high-lift configuration[J].Sci China Tech Sci,2012,42(8):945-956
[4]张进,张彬乾,阎文成,等.微型涡流发生器控制超临界翼型边界层分离实验研究[J].实验流体力学,2005,19(3):58-84.ZHANG Jin,ZHANG Binqian,YAN Wencheng,et al.Investigaiton of boundary layer separation control for supercritical airfoil using micro vortex generator[J].Journal of experiments in fluid mechanics,2005,19(3):58-84.
[5]黄红波,陆芳,丁恩宝,等.涡流发生器在民船减振上的应用研究[J].中国造船,2011,51(S1):68-75.HUANG Hongbo,LU Fang,DING Enbao,et al.An application research on vibration reduction for multi-purpose vessel with vortex generator[J].SHIPBUILDING OF CHINA,2011,51(S1):68-75
[6]J.Kaitlyn Allen,Michael L.Peterson,George V.Sharrard,et al.Radiated noise from commercial ships in the Gulf of Maine:Implications for whale/vessel collisions[J].J.Acoust.Soc.Am.,2012,132(3):el229-235.
[7]Rosalind M.Rolland,Susan E.Parks,Kathleen E.Hunt,et al.Evidence that ship noise increases stress in right whales[J].Proceedings of the Royal Society,2012,279:2363-2368.
[8]朱奇亮、高永卫、叶正寅.不同声激励方式对多段翼型升力特性的影响[J].航空工程进展,2013,4(2):232-236.ZHU Qiliang,GAO Yongwei,YE Zhengyin.Influence of the different acoustic excitations on lift characteristic of a multi-element airfoil[J].Advance in aeronautical science and engineering,2013,4(2):232-236.