Numerical simulation of aeroacoustic characteristics of high-speed maglev trains

被引：0
|
作者：
Zhang J. [1 ,2 ,3 ]
Wu Y. [1 ,2 ,3 ]
Gao J. [1 ,2 ,3 ]
Gao G. [1 ,2 ,3 ]
Yang Z. [1 ,2 ,3 ]
机构：
[1] Key Laboratory of Traffic Safety on Track of Ministry of Education, School of Traffic and Transporation, Central South University, Changsha
[2] Joint International Research Laboratory of Key Technology for Rail Traffic Safety, Changsha
[3] National and Local Joint Engineering Research Center of Safety Technology for Rail Vehicle, Changsha
来源：
Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) | 2022年 / 53卷 / 10期
关键词：
aerodynamic noise; high-speed maglev train; noise source; penetrable integral surface; radiated noise;
D O I：
10.11817/j.issn.1672-7207.2022.10.037
中图分类号：
学科分类号：
摘要：
Combined with Kirchhoff-Ffowcs Williams-Hawkings(K-FWH) equations, an LES(large eddy simulation) investigation was carried out to explore the difference of aerodynamic/acoustic characteristics between the high-speed maglev train and high-speed train at the speed grade of 400 km/h, so as to obtain the key characteristics of aerodynamic excitation sound of maglev trains. Using this validated approach, the numerical simulation on the radiated aerodynamic noise of a 600 km/h high-speed maglev train was conducted coupled with the reasonable construction of penetrable integral surface on disturbance sources in different regions. The results show that for the high-speed train, the main source is the geometrically induced sound, due to its uneven surface. However, for the maglev train with smooth surface, the main sound source comes from the spatial disturbance caused by the separation of boundary layers at the streamlined nose of the tail car. When the maglev train is running at 600 km/h, the dipole sound source at the streamlined region of the tail car and the quadrupole sound source in the wake contribute to the aerodynamic sound energy of the maglev train. The average radiation contribution of the quadrupole noise in the wake region reaches 60.9%, showing a dominant contribution compared to the dipole noise source. © 2022 Central South University of Technology. All rights reserved.
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页码：4185 / 4196
页数：11
相关论文
共 25 条
  • [1] DING Sansan, GE Jianmin, GUO Jianqiang, Et al., Noise emission assessment and countermeasures of high-speed maglev system, Electric Drive for Locomotives, 6, pp. 6-9, (2020)
  • [2] ZHOU Dan, TIAN Hongqi, LU Zhaijun, Optimization of aerodynamic shape for domestic maglev vehicle, Journal of Central South University(Science and Technology), 37, 3, (2006)
  • [3] CHEN Xiaohong, TANG Feng, HUANG Zhaoyi, Et al., High-speed maglev noise impacts on residents: a case study in Shanghai[J], Transportation Research Part D: Transport and Environment, 12, 6, (2007)
  • [4] TIAN Hongqi, Review of research on high-speed railway aerodynamics in China[J], Transportation Safety and Environment, 1, 1, (2019)
  • [5] ZHANG Yadong, ZHANG Jiye, LI Tian, Et al., Investigation of the aeroacoustic behavior and aerodynamic noise of a high-speed train pantograph[J], Science China Technological Sciences, 60, 4, (2017)
  • [6] HUANG Sha, LIANG Xifeng, YANG Mingzhi, Numerical simulation of aerodynamic noise and noise reduction of high-speed train connection section, Acta Aerodynamica Sinica, 30, 2, (2012)
  • [7] LIANG Xifeng, LIU Huifang, DONG Tianyun, Et al., Aerodynamic noise characteristics of high-speed train foremost bogie section[J], Journal of Central South University, 27, 6, (2020)
  • [8] HE Jiao, LI Yingli, TAN Xiaoming, Et al., Investigation on aeroacoustic performance of EMU6, Journal of Railway Science and Engineering, 15, 8, (2018)
  • [9] TAN Xiaoming, YANG Zhigang, WU Xiaolong, Et al., Experimental study on frequency spectrum component model of noise source outside CIT500 train, Journal of the China Railway Society, 39, 7, (2017)
  • [10] ZHANG Jie, XIAO Xinbiao, SHENG Xiaozhen, Et al., Sound source localisation for a high-speed train and its transfer path to interior noise [J], Chinese Journal of Mechanical Engineering, 32, 1, (2019)
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