流激格栅孔腔自噪声特性数值计算研究

摘要
图/表
参考文献(23)
相关文章 (15)

全文: PDF (3242 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要当水流流经水下航行体表面开孔时会产生随机的压力脉动并辐射噪声，为了研究流激水下航行体表面开孔自噪声特性和近场辐射噪声特性，基于大涡模拟和声学类比相结合的数值计算方法建立了数值预报模型，通过与文献中试验对比辐射噪声的一阶主频和二阶主频，验证了数值计算方法的有效性。基于建立的流激带格栅短开孔浅腔自噪声及辐射噪声预报方法，开展了有无格栅以及两种格栅类型对孔腔内流场特性、格栅处压力脉动声压级、距孔腔中心1m处辐射噪声和去流段湍流压力脉动波数-频率谱的影响研究。结果分析表明，在本文的研究工况中无格栅孔腔内自噪声较小，格栅对辐射噪声有明显抑制效果，而倾斜格栅的抑制效果较好。
关键词：大涡模拟；流激孔腔；格栅；流噪声；波数-频率谱

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	孙铁志1
	谢勃汉1
	苗天丞2
	姜宜辰1
	丁言义1

关键词 ：大涡模拟, 流激孔腔, 格栅, 流噪声, 波数-频率谱

Abstract：In order to study the characteristics of self noise and near-field radiated noise, a numerical prediction model based on large eddy simulation and acoustic analogy was established. The first-order dominant frequency and the second-order dominant frequency of radiated noise were compared with the experimental results in the literature and the effectiveness of the numerical method is verified. Based on the self noise and radiated noise prediction method of shallow cavity with short opening grid, the effects of grid and two grid types on the flow field characteristics, pressure fluctuation sound pressure level at grid, radiated sound pressure level at 1m away from the center of the cavity and turbulent pressure fluctuation wave number frequency spectrum in the outlet section were studied. The results show that the self noise in the cavity without grid is small, the grid has obvious suppression effect on radiation noise and wavenumber frequency spectrum, and the inclined grid has better suppression effect.
Key words: Large eddy simulation; Flow-induced cavity; Grille; Flow noise; Wavenumber-frequency spectrum

Key words： Large eddy simulation Flow-induced cavity Grille Flow noise Wavenumber-frequency spectrum

收稿日期: 2021-07-13 出版日期: 2022-10-28

引用本文:

孙铁志1，谢勃汉1，苗天丞2，姜宜辰1，丁言义1. 流激格栅孔腔自噪声特性数值计算研究[J]. 振动与冲击, 2022, 41(20): 235-243.
SUN Tiezhi1, XIE Bohan1, MIAO Tiancheng2, JIANG Yichen1, DING Yanyi1. Numerical study on self-noise characteristics of a flow-induced grid cavity. JOURNAL OF VIBRATION AND SHOCK, 2022, 41(20): 235-243.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2022/V41/I20/235

[1] ARUNAJATESAN S，SINHA N .Modeling Approach for Reducing Helmholtz Resonance in Submarine Structures[C]. //AIAA/CEAS Aeroacoustics Conference. Monterey ,California: AIAA/CEAS, 2005:1-.
[2] 刘璐璐,吕世金,刘进.流激孔腔噪声特征及控制方法研究[J].船舶力学,2017,21(04):493-502.
LIU Lu-lu, LV Shi-jin, Liu Jin. Characteristics and control of cavity noise induced by flow excitation[J]. Journal of Ship Mechanics,2017,21(04):493-502.
[3] Ask Jonas,Davidson Lars. Flow and Dipole Source Evaluation of a Generic SUV[J]. Journal of Fluids Engineering,2010,132(5).
[4] 吕世金,俞孟萨,李东升.水下航行体水动力辐射噪声预报方法研究[J].水动力学研究与进展A辑,2007(04):475-482.
LV Shi-jin, YU Meng-sa, LI Dong-sheng. Prediction of hydrodynamic radiation noise of underwater vehicle[J]. Journal of Hydrodynamics A,2007(04):475-482.
[5] B.D. Knotts,A. Selamet. Suppression of flow–acoustic coupling in sidebranch ducts by interface modification[J]. Journal of Sound and Vibration,2003,265(5).
[6] 张楠,李亚,王志鹏等.基于LES与Powell涡声理论的孔腔流激噪声数值模拟研究[J].船舶力学,2015,19(11):1393-1408.
ZHANG Nan, Li Ya, WANG Zhi-Peng, et al. Numerical simulation on the flow induced noise of cavity by LES and Powell vortex sound theory[J]. Journal of Ship Mechanics,2015,19(11):1393-1408.
[7] G. M. CORCOS CORCOS GM. The structure of the turbulent pressure field in boundary-layer flows[J]. Journal of Fluid Mechanics,1964,18(3):353-378. DOI:10.1017/S002211206400026X.
[8] Srinivasan Arunajatesan,Neeraj Sinha. Hybrid RANS-LES modeling for cavity aeroacoutics predictions[J]. International Journal of Aeroacoustics,2009,2(1).
[9] 杨国晶. 陷落式腔体水动力特性研究[D].哈尔滨工程大学,2009.
Yang Guo-jing. Research on the Hydrodynamic Characters of the Cave-in Cavity[D]. Harbin Engineering University,2009.
[10] J. Basley,L. R. Pastur,F. Lusseyran,T. M. Faure,N. Delprat. Experimental investigation of global structures in an incompressible cavity flow using time-resolved PIV[J]. Experiments in Fluids,2011,50(4).
[11] 熊济时,吕世金,邱昌林等.流激开孔和空腔结构耦合振动噪声试验研究[J].中国舰船研究,2017,12(04):117-121.
XIONG J S，LV S J，QIU C L，et al. Experiments of opening and cavity shear flow-induced vibration and structuralcoupling resonance［J］. Chinese Journal of Ship Research，2017，12（4）：117-121.
[12] 张翰钦,孙国仓,郑国垠等.水下开孔结构流激振荡频率特性分析[J].浙江大学学报(工学版),2017,51(02):350-357.
ZHANG Han-qin, SUN Guo-cang, ZHENG Guo-yin, et al. Analysis of frequency characteristic of underwater flow-induced cavity oscillation[J]. Journal of Zhejiang University (Engineering Science), 2017,51(02):350-357
[13] 邓玉清,张楠.孔腔脉动压力及其波数—频率谱的大涡模拟研究[J].船舶力学,2017,21(10):1199-1209.
Deng Yu-qing, Zhang Nan. Computation of wall pressure fluctuations and wavenumber-frequency spectrum of cavity using large eddy simulation[J]. Journal of Ship Mechanics,2017,21(10):1199-1209.
[14] Seung Joong Kim,Wei-Xi Huang,Hyung Jin Sung. The reduction of noise induced by flow over an open cavity[J]. International Journal of Heat and Fluid Flow,2020,82.
[15] Bensow R, Persson T. Large Eddy Simulation of the Viscous Flow around Submarine Hulls[C]. 25th ONR Symposium on Naval Hydrodynamics. 2004.
[16] 傅慧萍,缪国平.大涡模拟在噪声计算中的应用[J].上海交通大学学报,2009,43(08):1307-1311+1316.
FU Hui-ping, MIAO Guo-ping. Application of LES Method to Flow Noise Calculation[J]. Journal of Shanghai Jiaotong Unversity,2009,43(08):1307-1311+1316.
[17] J. E. Ffowcs Williams,D. L. Hawkings. Sound Generation by Turbulence and Surfaces in Arbitrary Motion[J]. Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences (1934-1990),1969,264(1151).
[18] 那薇,陈宝,周国成. 基于FW-H方程的气动噪声辐射数值方法研究[C]. //第十五届全国计算流体力学会议. 2012:307-311.
NA Wei, CHEN Bao, ZHOU Guo-cheng. Aeroacoustic simulation method research based on FW-H equation[C]. // Proceedings of the 15th National Conference on computational fluid dynamics.2012:307-311.
[19] 刘璐璐,吕世金,刘进,沈琪. 导流板对流激孔腔噪声的控制效果研究[A]. 中国造船工程学会船舶振动噪声重点实验室.第十六届船舶水下噪声学术讨论会论文集[C].中国造船工程学会船舶振动噪声重点实验室:中国船舶科学研究中心《船舶力学》编辑部,2017:5.
[20] 刘进,吕世金,沈琪. 流激开孔空腔噪声数值预报方法研究[C]// 中国造船工程学会船舶力学学术委员会水下噪声学组成立三十周年第十五届船舶水下噪声学术讨论会. 郑州: 中国造船工程学会,2015.
[21] Powell A . The Theory of Vortex Sound[J]. The Journal of the Acoustical Society of America, 1964, 33.
[22] Rossiter J E . Wind-Tunnel Experiments on the Flow over Rectangular Cavities at Subsonic and Transonic Speeds[R]. Royal Aircraft Establishment, 1964.
[23] 俞孟萨,张铮铮,高岩.开口与空腔流激声共振及声辐射研究综述[J].船舶力学,2015,19(11):1422-1430.
YU Meng-sa, ZHANG Zheng-zheng, GAO Yan. A review of acoustic resonant and radiation of aperture and cavity by flow excitation[J]. Journal of Ship Mechanics,2015,19(11):1422-1430.