基于关联速度的FW-H积分四极子声源修正模型
Quadrupole source term corrections based on correlation functions for Ffowcs Williams and Hawkings integrals
查看参考文献23篇
|
文摘
|
FW-H积分中的四极子声源项常在远场噪声的计算中引起虚假声源问题。这类虚假声源是由于计算四极子声源的积分域不能包含全部声源区域,Lighthill应力张量穿过四极子声源的积分域边界引起的。本文在频域方法的框架下改进了四极子声源项的修正模型,用于修正Lighthill应力张量穿过积分域边界引起的误差。该模型基于泰勒冻结流假设,利用关联函数计算Lighthill应力张量的对流速度。与常用的均匀来流对流速度相比,本文提出的模型考虑了对流速度的空间非均匀性,改善了非均匀流动区域FW-H积分面对远场噪声的影响。二维对流涡和圆柱绕流的远场噪声验证了本文模型的有效性。 |
|
其他语种文摘
|
The quadrupole source term in the Ffowcs Williams and Hawkings (FW-H) integrals usually causes spurious contributions to the far field sound.The spurious contributions are contributed by the convection of the Lighthill stress tensor crossing the FW-H integral surface when the integral domain cannot include all the quadrupole sources.We proposed a quadrupole source term correction model within the frequency domain to correct the errors associated with the convection of Lighthill stress tensor.Based on Taylor’s hypothesis,the proposed model uses the correlation functions of the Lighthill stress tensor to compute the convection velocity. Compared with the using of uniform upstream velocity as the convection velocity,the proposed model has the advantages of taking account for the non-uniform distribution of the convection velocity.We validate the proposed model by computing the far-field sound generated by the twodimensional convecting vortex and the flows around a circular cylinder.The proposed model significantly improves the directivity of the far field sound generated by the flows around the circular cylinder. |
|
来源
|
空气动力学学报
,2020,38(6):1129-1135 【核心库】
|
|
DOI
|
10.7638/kqdlxxb-2020.0141
|
|
关键词
|
流动噪声
;
FW-H积分
;
四极子声源
;
泰勒冻结流假设
;
关联速度
;
Lighthill应力张量
;
气动声学
|
|
地址
|
1.
中国科学院力学研究所, 非线性力学国家重点实验室, 北京, 100190
2.
中国科学院大学工程科学学院, 北京, 100049
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
0258-1825 |
|
学科
|
数学 |
|
基金
|
国家自然科学基金
;
国家数值风洞工程
;
国家自然科学基金
|
|
文献收藏号
|
CSCD:6906159
|
参考文献 共
23
共2页
|
|
1.
Ffowcs Williams J E. Sound generation by turbulence and surfaces in arbitrary motion.
Philosophical Transactions of the Royal Society of London Series A, Mathematical and Physical Sciences,1969,264(1151):321-342
|
CSCD被引
200
次
|
|
|
|
|
2.
段广战. 基于CFD的直升机旋翼噪声计算.
空气动力学学报,2009,27(3):314-319
|
CSCD被引
5
次
|
|
|
|
|
3.
贺祥. 基于声压相消的旋翼厚度噪声控制机理.
空气动力学学报,2019,37(6):893-900
|
CSCD被引
2
次
|
|
|
|
|
4.
卢清华. 基于LES方法的增升装置气动噪声特性分析.
空气动力学学报,2016,34(4):448-455
|
CSCD被引
12
次
|
|
|
|
|
5.
刘志仁. 二维增升装置前缘缝翼的远场噪声分析.
空气动力学学报,2012,30(3):388-393
|
CSCD被引
8
次
|
|
|
|
|
6.
Wang L. Detached-eddy simulation of landing-gear noise.
Proc of the 19th AIAA/CEAS Aeroacoustics Conference,2013
|
CSCD被引
1
次
|
|
|
|
|
7.
陈坚强. 国家数值风洞(NNW)工程关键技术研究进展.
中国科学:技术科学,2020
|
CSCD被引
8
次
|
|
|
|
|
8.
Ikeda T. On the modification of the ffowcs williams-hawkings integration for jet noise prediction.
Proc of the 19th AIAA/CEAS Aeroacoustics Conference,Berlin,Germany,2013
|
CSCD被引
1
次
|
|
|
|
|
9.
Nitzkorski Z. A dynamic end cap technique for sound computation using the Ffowcs Williams and Hawkings equations.
Physics of Fluids,2014,26(11):115101
|
CSCD被引
4
次
|
|
|
|
|
10.
Ikeda T. Quadrupole effects in the ffowcs williams-hawkings equation using permeable control surface.
Proc of the 18th AIAA/CEAS Aeroacoustics Conference (33rd AIAA Aeroacoustics Conference),Colorado Springs,CO,2012
|
CSCD被引
1
次
|
|
|
|
|
11.
Wang M. Computation of quadrupole noise using acoustic analogy.
AIAA Journal,1996,34(11):2247-2254
|
CSCD被引
6
次
|
|
|
|
|
12.
Rahier G. Additional terms for the use of Ffowcs Williams and Hawkings surface integrals in turbulent flows.
Computers &Fluids,2015,120:158-172
|
CSCD被引
3
次
|
|
|
|
|
13.
Yao H D. Noise radiated by low-Reynolds number flows past a hemisphere at Ma=0.3.
Physics of Fluids,2017,29(7):076102
|
CSCD被引
3
次
|
|
|
|
|
14.
Mao Y J. Analysis of spurious sound due to vortical flow through permeable surfaces.
Aerospace Science and Technology,2020,96:105544
|
CSCD被引
3
次
|
|
|
|
|
15.
Shur M L. Towards the prediction of noise from jet engines.
International Journal of Heat and Fluid Flow,2003,24(4):551-561
|
CSCD被引
3
次
|
|
|
|
|
16.
Lockard D. Permeable surface corrections for ffowcs williams and hawkings integrals.
Proc of the 11th AIAA/CEAS Aeroacoustics Conference,Monterey,California.,2005
|
CSCD被引
1
次
|
|
|
|
|
17.
Lockard D P. An efficient,two-dimensional implementation of the ffowcs williams and hawkings equation.
Journal of Sound and Vibration,2000,229(4):897-911
|
CSCD被引
9
次
|
|
|
|
|
18.
Lockard D. A comparison of ffowcs williams-hawkings solvers for airframe noise applications.
Proc of the 8th AIAA/CEAS Aeroacoustics Conference & Exhibit,Breckenridge,Colorado,2002
|
CSCD被引
1
次
|
|
|
|
|
19.
Zhang W B. Parameter selection in cross-correlation-based velocimetry using circular electrostatic sensors.
IEEE Transactions on Instrumentation and Measurement,2010,59(5):1268-1275
|
CSCD被引
4
次
|
|
|
|
|
20.
Cheung L. Evaluation of far-field sound with open surface corrections to lighthill's equation.
Proc of the 12th AIAA/CEAS Aeroacoustics Conference(27th AIAA Aeroacoustics Conference), Cambridge, Massachusetts,2006
|
CSCD被引
1
次
|
|
|
|
|
了解气象卫星更多信息，请访问