Numerical Simulation on Aerodynamic Noise and Reduction Effect of Sound Barriers with Different Geometric Shapes for High-Speed Train

被引：0
|
作者：
Li S. [1 ]
Li M. [2 ]
Liu G. [1 ]
Wang R. [1 ]
Liu X. [1 ]
机构：
[1] School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin
[2] CATARC Automotive Test Center (Tianjin) Co., Ltd., Tianjin
来源：
Zhongguo Tiedao Kexue/China Railway Science | 2020年 / 41卷 / 03期
关键词：
Acoustic analogy theory; Aerodynamic noise; Geometric shape; High-speed railway; Sound barrier;
D O I：
10.3969/j.issn.1001-4632.2020.03.15
中图分类号：
学科分类号：
摘要：
Based on the Lighthill acoustic analogy theory, the generation and propagation of the aerodynamic noise of high-speed train were solved respectively. Firstly, the steady-state calculation results of the flow field were obtained from RNG k-ε turbulence model. Then the large eddy simulation and FW-H equation were adopted to compare the noise reduction performance of upright and semi-circular sound barriers. Based on the simulation model including CRH380A high-speed train with three-car formation and two kinds of sound barriers, the influence of sound barrier geometry on the acoustic performance and noise reduction capability of sound barriers was clarified. Results show that the semi-circular sound barrier with the central angle of 180° has larger average insertion loss at measuring points and a good matching for the reduction requirements of aerodynamic noise, and the comprehensive acoustic performance is better than the traditional upright sound barrier. Reducing the central angle will result in the corresponding reduction in the noise reduction ability of the semi-circular sound barrier, and its insertion loss will show a significant downward trend in the reduction process of the central angle from 180° to 120°, while the subsequent decrease is relatively small. Nevertheless, the noise reduction effect of the semi-circular sound barrier with the central angle of 30° is similar to that of an upright sound barrier of the same height. © 2020, Editorial Department of China Railway Science. All right reserved.
引用
收藏
页码：129 / 136
页数：7
相关论文
共 17 条
  • [1] IVANOV N I, BOIKO I S, SHASHURIN A E., The Problem of High-Speed Railway Noise Prediction and Reduction, Procedia Engineering, 189, pp. 539-546, (2017)
  • [2] ZHENG Xu, HAO Zhiyong, WANG Xu, Et al., A Full-Spectrum Analysis of High-Speed Train Interior Noise under Multi-Physical-Field Coupling Excitations, Mechanical Systems and Signal Processing, 75, pp. 525-543, (2016)
  • [3] YAO Shuanbao, GUO Dilong, SUN Zhenxu, Et al., Optimization Design for Aerodynamic Elements of High Speed Trains, Computers & Fluids, 95, pp. 56-73, (2014)
  • [4] WANG Yanpeng, JIAO Yinghou, CHEN Zhaobo, Research on the Well at the Top Edge of Noise Barrier, Applied Acoustics, 133, pp. 118-122, (2018)
  • [5] PAUL Reiter, REINHARD Wehr, HARALD Ziegelwanger, Simulation and Measurement of Noise Barrier Sound-Reflection Properties, Applied Acoustics, 123, pp. 133-142, (2017)
  • [6] ERIK M, SALOMONS, Noise Barriers in a Refracting Atmosphere, Applied Acoustics, 47, 3, pp. 217-238, (2013)
  • [7] PEIRO-TORRES M P, REDONDO J, BRAVO J M, Et al., Open Noise Barriers Based on Sonic Crystals. Advances in Noise Control in Transport Infrastructures, Transportation Research Procedia, 18, pp. 392-398, (2016)
  • [8] HE Bin, XIAO Xinbiao, ZHOU Xin, Et al., Numerical Study on Acoustic Performance of High-Speed Railway Noise Barriers with Different Geometric Shape, Journal of Mechanical Engineering, 52, 2, pp. 99-107, (2016)
  • [9] WU Xiaoping, FEI Guanghai, LIAO Chenyan, Analysis on Noise Reduction Effect of Sound Barriers with Different Heights for High Speed Railway, China Railway Science, 36, 3, pp. 127-132, (2015)
  • [10] SU Weiqing, PAN Xiaoyan, YE Ping, The Study of Acoustic Computing Model for the Noise Barrier of High-Speed Railway, China Railway Science, 34, 1, pp. 126-130, (2013)
12