Numerical analysis on aerodynamic noise of the high-speed train head

被引：0

作者：

Liu J.-L. ^{[1
]}

Zhang J.-Y. ^{[1
]}

Zhang W.-H. ^{[1
]}

机构：

[1] State Key Laboratory of Traction Power, Southwest Jiaotong University

来源：

Tiedao Xuebao/Journal of the China Railway Society | 2011年 / 33卷 / 09期

关键词：

Aerodynamic noise; Broadband noise source model; High-speed train; Large eddy simulation; Lighthill acoustic analogue theory;

D O I：

10.3969/j.issn.1001-8360.2011.09.003

中图分类号：

学科分类号：

摘要：

Along with the raising of the train speed, aerodynamic noise of the high-speed train are generated more and more significantly and their reduction has become one of the key factors to control noises of the high-speed train. In this paper, aerodynamic noise radiated from the high-speed train head surface are analyzed numerically. The mathematical and physical models of the three dimensional flow field of the high-speed train are established and the external steady and unsteady flow fields of the high-speed train are calculated by using the standard k-ε turbulence model and large eddy simulation (LES) respectively. On the basis of the steady flow field, aerodynamic noise sources on the car body surface of the high-speed train are calculated by using the broadband noise source model. On the basis of the unsteady flow field, the time domain and frequency domain characteristics of fluctuating pressures on the car body surface are analyzed. The far-field aerodynamic noise of the high-speed train are calculated by applying the Lighthill acoustic analogue theory and the time domain and frequency domain characteristics of aerodynamic noise in the far-field are analyzed. The computational research is significant to study and control of aerodynamic noise of the high-speed train.

引用

页码：19 / 26

页数：7

共 24 条

[1]

Shen Z.-Y., Dynamic environment of high-speed train and its distinguished technology, Journal of the China Railway Society, 28, 4, pp. 1-5, (2006)

[2]

Talotte C., Aerodynamic noise: A cirtical survey, Journal of Sound and Vibration, 231, 3, pp. 549-562, (2000)

[3]

Lighthill M.J., On sound generated aerodynamically: Part 1: General theory, Proceedings of the Royal Society of London, Series A, Mathematical and Physical Sciences, 211, 1107, pp. 564-587, (1952)

[4]

Curle N., The influence of solid boundaries upon aerodynamic sound, Proceedings of the Royal Society of London, Series A, Mathematical and Physical Sciences, 231, 1187, pp. 506-514, (1955)

[5]

Ffowcs Williamsj E., Hawkings D.L., Sound generation by turbulence and surfaces in arbitrary motion, Philosophical Transactions for the Royal Society of London, Series A, Mathematical and Physical Sciences, 264, 1151, pp. 321-342, (1969)

[6]

Goldstein M.V., Unified approach to aerodynamic sound generation in the presence of boundaries, The Journal of Acoustical Society America, 56, 27, pp. 497-509, (1974)

[7]

King W.F., A precis of development in the aeroacoustics of fast trains, Journal of Sound and Vibration, 193, 1, pp. 349-358, (1996)

[8]

Noger C., Patrat J.C., Peube J., Et al., Aeroacoustical study of the TGV pantograph recess, Journal of Sound and Vibration, 231, 3, pp. 563-575, (2000)

[9]

Fredmion N., Vincent N., Aerodynamic noise radiated by the intercoach spacing and the bogie of a high-speed train, Journal of Sound and Vibration, 231, 3, pp. 577-593, (2000)

[10]

Kitagawa T., Nagakurak K., Aerodynamic noise generated by shinkansen cars, Journal of Sound and Vibration, 231, 3, pp. 913-924, (2000)

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