[1]张焕好,陈志华,姜孝海,等.脉冲射流声场的直接计算[J].南京理工大学学报(自然科学版),2014,38(02):228-238.
 Zhang Huanhao,Chen Zhihua,Jiang Xiahai,et al.Direct calculation of acoustic field in pulse jet[J].Journal of Nanjing University of Science and Technology,2014,38(02):228-238.
点击复制

脉冲射流声场的直接计算
分享到:

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
38卷
期数:
2014年02期
页码:
228-238
栏目:
出版日期:
2014-04-30

文章信息/Info

Title:
Direct calculation of acoustic field in pulse jet
作者:
张焕好陈志华姜孝海黄振贵
南京理工大学 瞬态物理国家重点实验室,江苏 南京 210094
Author(s):
Zhang HuanhaoChen ZhihuaJiang XiahaiHuang Zhengui
National Key Laboratory of Transient Physics,NUST,Nanjing 210094,China
关键词:
射流 剪切层 气动声学 大涡模拟 涡合并
Keywords:
jet flow shear layers aeroacoustics large-eddy simulation vortex pairing
分类号:
O354
摘要:
为了探讨亚声速射流气动声场中的主要噪声源以及声波产生机理,基于大涡模拟方法与高精度加权本质无振荡混合格式,对亚声速脉冲射流初始流场的发展过程进行了数值模拟,并根据得到的动力学流场对气动声场进行了直接计算。数值结果描述了射流剪切层在Kelvin-Helmholtz不稳定作用下失稳卷起小涡序列以及相邻小涡间相互旋转合并现象,并发现脉冲射流场的主要声源包括由前导压缩波形成的脉动噪声源、涡合并形成的四极子声源以及涡核内因涡卷起、变形与破碎所形成的湍流混合噪声源。其中,脉动噪声源最强,而涡合并所产生的四极子声源在整个声场中占主导地位。
Abstract:
To discuss the main sources of aeroacoustic field and generation mechanism of acoustic waves,the process of initial flow field development in a subsonic pulse jet is simulated by using the large-eddy simulation and the high-order hybrid-weight essentially non-oscillatory scheme,and the corresponding aeroacoustic field is calculated directly based on the obtained dynamics flow.The numerical results reveal the phenomena of the vortexlets rolled up due to the Kelvin-Helmholtz instability of jet shear layer and the pairing process of neighbor vortices.Calculation results also reveal that the main acoustic sources of the pulse jet include the pulse acoustic source generated by precursor compressible waves,the quadrupole source generated by the vortex pairing and the turbulent blend acoustic sources caused by rolling up,deforming and breakup of the vortexlets within the main vortex ring.The pulse acoustic source is the strongest and the quadrupole source dominates the whole acoustic field.

参考文献/References:

[1] 何枫,杨京龙,沈孟育.激波和剪切层相互作用下的超音速射流[J].物理学报,2002,51(9):1918-1922.
He Feng,Yang Jinglong,Shen Mengyu.Supersonic jet with interaction between shock and shear layers[J].Acta Physica Sinica,2002,51(9):1918-1922.
[2]Bridges J E.Application of coherent structure and vortex sound theories to jet noise[D].Houston,US:University of Houston,1990.
[3]Jiang X,Avital E J,Luo K h.Direct computation and aeroacoustic modelling of a subsonic axisymmetric jet[J].Journal of Sound and Vibration,2004,270(3):525-538.
[4]Bogey C,Bailly C,Juve D.Computation of the sound radiated by a 3-D jet using large eddy simulation[R].AIAA 2000-2009.
[5]Constantinescu G S,Lele S K.Large eddy simulation of a near sonic turbulent jet and its radiated noise[R].AIAA 2001-0376.
[6]张焕好,陈志华,黄振贵,等.超声速平面混合层声波产生机理[J].应用力学学报,2013,30(2):190-195.
Zhang Huanhao,Chen Zhihua,Huang Zhengui,et al.The generation mechanism of acoustic waves in a supersonic plane mixing layer[J].Chinese Journal of Applied Mechanics,2013,30(2):190-195.
[7]张焕好,陈志华,黄振贵,等.双涡合并产生的声波研究[J].南京理工大学学报,2013,37(6):886-890.
Zhang Huanhao,Chen Zhihua,Huang Zhengui,et al.The generation of noise in a corotating vortex pairing[J].Journal of Nanjing University of Science and Technology,2013,37(6):886-890.
[8]Voelkl T,Pullin D I,Chan D C.A physical-space version of the stretched-vortex subgrid-stress model for large-eddy simulation[J].Physics of Fluids,2000,12(7):1810-1825.
[9]Lundgren T S.Strained spiral vortex model for turbulent fine structure[J].Physics of Fluids,1982,25:2193-2203.
[10]Hill D J,Pullin D I.Hybrid tuned center-difference-WENO method for large eddy simulations in the presence of strong shocks[J].Journal of Computational Physics,2004,194(2):435-450.
[11]Tam C K,Webb J C.Dispersion-relation-preserving finite differentce schemes for computational acoustics[J].Journal of Computational Physics,1993,107:262-281.
[12]Zhuang M,Chen R F.Optimized upwind dispersion-relation-preserving finite difference scheme for computational aeroacoustics[J].AIAA Journal,1998,36(11):2146-2148.
[13]Israeli M,Orszag S A.Approximation of radiation boundary conditions[J].Journal of Computational Physics,1981,41(1):115-135.
[14]Daru V,Gloerfelt X.Aeroacoustic computations using a high-order shock-capturing scheme[J].AIAA Journal,2007,45(10):2474-2486.
[15]Mitchell B E,Lele S K,Moin P.Direct computation of the sound from a compressible co-rotating vortex pair[R].AIAA 1992-0374.
[16]Zhao W,Frankel S H,Mongeau L G.Effects of trailing jet instability on vortex ring formation[J].Physics of Fluids,2000,12(3):589-596.
[17]沙莎,陈志华,张焕好,等.Schardin问题的数值研究[J].物理学报,2012,61(6):363-371.
Sha Sha,Chen Zhihua,Zhang Huanhao,et al.Numerical investigations on the Schardin's problem[J].Acta Physica Sinica,2012,61(6):363-371.
[18]应展烽,陈志华,徐晓磊,等.可压缩混合层三维流动的大涡模拟[J].南京理工大学学报,2008,32(3):342-345.
Ying Zhanfeng,Chen Zhihua,Xu Xiaolei,et al.Large eddy simulation of three-dimensional compressible mixing layer[J].Journal of Nanjing University of Science and Technology,2008,32(3):342-345.
[19]张焕好,陈志华,黄振贵,等.亚声速等膨胀平面射流的初始流场结构[J].推进技术,2012,33(4):591-596.
Zhang Huanhao,Chen Zhihua,Huang Zhengui,et al.Initial flow structure of an iso-expanded subsonic plane jet[J].Journal of Propulsion Technology,2012,33(4):591-596.
[20]Hussan A E.Coherent structures-reality and myth[J].Physics of Fluids,1983,26(10):2816-2823.
[21]Pimshtein V G.Sound Generation by interacting vortices in a subsonic turbulent jet[J].Fluid Dynamics,2000,35(1):43-47.

相似文献/References:

[1]祖旭东,黄正祥,贾鑫,等.橡胶复合靶板抗成型装药射流侵彻研究[J].南京理工大学学报(自然科学版),2012,36(06):0.
 ZU Xu dong,HUANG Zheng xiang,JIA Xin,et al.Rubber Composite Armor Subjected to Shaped Charge Jet Penetration[J].Journal of Nanjing University of Science and Technology,2012,36(02):0.
[2]张玉荣,金志明.RLPG高压射流初始段测试及分析[J].南京理工大学学报(自然科学版),1999,(01):54.
 Zhang Yurong Jin Zhiming.Measurement and Analysis of High Pressure Liquid Jet at Its Initial Stage in RLPG[J].Journal of Nanjing University of Science and Technology,1999,(02):54.
[3]栗保明,耿继辉.高压射流雾化性能实验分析[J].南京理工大学学报(自然科学版),1995,(04):302.
 Pressure Jets Li Baoming Geng Jihui.Experimental Analysis on Atomization of High[J].Journal of Nanjing University of Science and Technology,1995,(02):302.
[4]徐学华.射流侵彻陶瓷靶试验研究与工程计算模型[J].南京理工大学学报(自然科学版),1994,(01):17.
 Xu Xuehua.A Study on the Experiment of Jet Penetration into a Ce-ramic Target and Its Engineering Calculation Model.[J].Journal of Nanjing University of Science and Technology,1994,(02):17.
[5]于骐.某破甲弹药型罩各微元破甲效率[J].南京理工大学学报(自然科学版),1978,(03):119.

备注/Memo

备注/Memo:
收稿日期:2012-10-23 修回日期:2013-01-21
基金项目:国家自然科学基金(11272156)
作者简介:张焕好(1985-),女,博士,主要研究方向:超声速流动及其声场,E-mail:zhanghuanhao9@163.com; 通讯作者:陈志华(1967-),男,博士,教授,主要研究方向:计算流体力学与爆炸力学,E-mail:chenzh@mail.njust.edu.cn。
引文格式:张焕好,陈志华,姜孝海,等.脉冲射流声场的直接计算[J].南京理工大学学报,2014,38(2):228-233.
投稿网址:http://njlgdxxb.paperonce.org
更新日期/Last Update: 2014-04-30