亚临界圆柱绕流辐射噪声的大涡模拟
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- 论文作者：时北极 ; 郭力 ; 何国威
- 年：2016
- 作者机构：中科院力学研究所非线性力学国家重点实验室;中国航天空气动力技术研究院;
- 论文关键词：圆柱绕流 ; 气动噪声 ; 大涡模拟 ; 亚格子模型 ; 非结构网格 ; Lighthill声学比拟 ; Curle积分解
- 会议召开时间：2016-11-04
- 会议录名称：2016年度全国气动声学学术会议论文摘要集
- 语种：中文
- 分类号：V211
- 学会代码：LTLX
- 会议名称：2016年度全国气动声学学术会议
- 会议地点：中国北京
- 主办单位：中国航空学会航空声学专业委员会、中国航空学会气动声学专业委员会、中国商飞上海飞机设计研究院、北京航空航天大学
- 学会名称：北京航空航天大学流体力学教育部重点实验室
- 页数：8
- 文件大小：787k
- 原文格式：D
- 会议级别：全国
摘要
本文对亚临界圆柱绕流的远场辐射噪声进行了数值研究。我们采用大涡模拟方法数值求解不可压缩N-S方程,离散方法为基于非结构网格的有限体积方法,其中对流项的时间推进采用Amdams-Bashforth格式,粘性项采用半隐式的Crank-Nichson格式。计算得到的流场平均速度和脉动速度与Lamballais等以及Franke和Frank等人的实验和计算结果吻合。在此基础上,采用基于Lighthill声学比拟理论的Curle积分解计算了低马赫数下的远场辐射噪声。数值结果表明远场噪声是流场雷诺应力体积分的四极子效应与圆柱表面压力脉动面积分的偶极子效应的叠加,并且由壁面压力脉动的偶极子效应所主导。通过计算不同方向远场观察点的压力谱,我们发现流向观察点压力脉动的主频为2倍的涡脱落频率,而其他方向观察点的压力脉动主频则对应于涡脱落频率。对比体积积分和表面积分压力谱的结果表明:远场噪声的低频成分由表面积分所主导,而在高频部分则由体积积分所决定并且远场噪声的压力谱与体积积分在高频具有相同的衰减率。
引文
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[2]A.MARSDEN,M.WANG,J.DENNIS,等人Trailingedge noise reduction using derivative-free optimization and large-eddy simulation,J.Fluid Mech.,2007,572:13-36.
[3]W.R.WOLF,S.K.LELE,Trailing edge noise predictions using compressible LES and acoustic analogy,AIAA,2011,2011-2784.
[4]Q.YANG,W.WANG,Computational study of roughness-induced boundary-layer noise,AIAA,2009,47:2417-2429.
[5]P.SPALARTA,M.SHURB,M.STRELETSB,等人,Towards noise prediction for rudimentary landing gear,Proc.Eng.,2010,6:283-292.
[6]J.BOUDET,D.CASALINO,M.C.JACOB,Prediction of sound radiated by a rod using large eddy simulation,AIAA,2003,2003-3217.
[7]J.H.SEO,K.W.CHANG,Y.J.MOON,Aerodynamic noise prediction for long-span bodies,AIAA,2006,2006-2573.
[8]R.M.ORSELLI,J.R.MENEGHINI,F.SALTARA,Two and three dimensional simulation of sound generated by flow around a circular cylinder,AIAA,2009,2009-3270.
[9]C.H.K.WILLIAMSON,Vortex dynamics in the cylinder wake,Annu.Rev.Fluid Mech.,1996,28:477-539.
[10]M.MURAYAMA,Y.YOKOKAWA,H.KATO,Computational and experimental study on noise generation from tire-axle regions of a two-wheel main landing gear,AIAA,2011,2011-2821.
[11]D.YOU,P.MOIN,A dynamic global-coefficient subgrid-scale eddy-viscosity model for large-eddy simulation in complex geometries,Phys.Fluids,2007,19:169-182.
[12]A.VREMAN,An eddy-viscosity subgrid-scale model for turbulent shear flow:Algebraic theory and applications,Phys.Fluids,2004,16:3670.
[13]L.GUO,X.ZHANG,G.W.HE,Large-eddy simulation of circular cylinder flow at subcritical Reynolds number:Turbulent wake and sound radiation,Acta Mech.Sin.,2016,32:1-11.
[14]M.J.LIGHTHILL,On sound generated aerodynamically.I.General theory,Proc.R.Soc.A,1952,211:564-587.
[15]N.CURLE,The influence of solid boundaries upon aerodynamic sound,Proc.R.Soc.A,1955,231:505-510.
[16]M.WANG,S.K.LELE,P.MOIN,Computation of quadrupole noise using acoustic analogy,AIAA,1996,34:2247-2254.
[17]P.MARTINEZ,C.SCHRAM,Correction techniques for the truncation for the source field in acoustic analogies,J.Acoust.Soc.Am.,2008,124(6):3421-3429.
[18]A.G.KRAVCHENKO,P.MOIN,Numerical studies of flow over a circular cylinder at Re D=3900,Phys.Fluids,2000,12:403-417.
[19]P.BEAUDAN,P.MOIN,Numerical experiments on the flow past a circular cylinders at sub-critical Reynolds numbers.Report No.TF-62,Department of Mechanical Engineering,Stanford University,Stanford,1994.
[20]J.FRANKE,W.FRANK,Large eddy simulation of the flow past a circular cylinder at Re D=3900 J.Wind Eng.Ind.Aerodyn.,2002,90:1191-1206.
[21]P.PARNAYDEAU,J.CARLIER,D.HEITZ,E.LAMBALLAIS,Experimental and numerical studies of the flow over a circular cylinder at Reynolds number3900,Phys.Fluids,2008,20(8):1-14.
[22]O.INOUE,N.HATAKEYAMA,A combined direct numerical simulation-particle image velocimetry study of the turbulent near wake,J.Fluid Mech.,2006,569:185-207.
[23]O.INOUE,N.HATAKEYAMA,Sound generation by a two-dimensional circular cylinder in a uniform flow,J.Fluid Mech.,2002,471:285-314.
[24]F.PEROT,J.AUGER,H.GIARDI,Numerical prediction of the noise radiated by a cylinder,AIAA,2003,2003-3240.
[25]X.GLOERFELT,F.PEROT,C.BAILLY,D.JUVE,Flow-induced cylinder noise formulated as a diffraction problem for low Mach numbers,J.Sound and Vibration,2005,287:129-151.