Numerical Simulation of Aerodynamic Pressure on Sound Barriers from High-Speed Trains with Different Nose Lengths
Source abstract
Abstract
For high-speed railway sound barriers, determining the aerodynamic pressure generated by high-speed trains is crucial for their structural design. This paper investigates the distribution of aerodynamic pressure on the sound barrier caused by high-speed trains with different nose lengths, utilizing the computational fluid dynamics (CFD) simulation method. The accuracy of the numerical simulation method employed is verified through comparison with field test results from the literature. Research findings reveal that when a high-speed train passes through a sound barrier, significant “head wave” and “wake wave” effects occur, with the pressure peak of the “head wave” being notably greater than that of the “wake wave”. As the distance between the sound barrier and the center of the train gradually increases, the aerodynamic pressure on the sound barrier gradually decreases. The nose length of the train has a considerable impact on the aerodynamic pressure exerted on the sound barrier. The streamlined shape of longer-nose trains can significantly reduce the aerodynamic effects on the sound barrier, resulting in a notably smaller pressure peak compared to shorter-nose trains. Finally, by establishing the relationship between the train nose length and the aerodynamic pressure peak, a calculation formula for the train-induced aerodynamic pressure acting on the sound barrier is proposed, taking into account the nose length of the high-speed train.
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Research context
OpenAlex topics: Aerodynamics and Fluid Dynamics Research · Vehicle Noise and Vibration Control · Wind and Air Flow Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, National Engineering Research Center for Prestressing Technology, School of Civil Engineering, Southeast University, Nanjing 211189, China
Division of Structural and Fire Engineering, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, 97187 Luleå, Sweden
Funding
Natural Science Foundation of China · the “One belt, one road” innovation cooperation project · Fundamental Research Funds for the Central Universities
References (37)
Show source-provided references
1. High speed train noise emission: Latest investigation of the aerodynamic/rolling noise contribution10.1016/j.jsv.2005.08.069 ↗
2. Aerodynamic noise generated by shinkasnsen cars10.1006/jsvi.1999.2639 ↗
3. The effect of structural elasticity on the efficiency of noise barriers10.1006/jsvi.2000.3059 ↗
4. Liu, W. (2014). Simulation Research of Aerodynamic Load on Sound Barrier of High-Speed Railway. [Master’s Thesis, Beijing Jiaotong University].
5. Numerical simulation of the phenomena due to the passing-by of two bodies using the unsteady boundary element method10.1002/(SICI)1097-0363(19960915)23:5<445::AID-FLD434>3.0.CO;2-N ↗
6. Aerodynamic characterization of high-speed trains and its development
7. Research on numerical simulation of high-speed railway noise barrier aerodynamic pressure10.4028/www.scientific.net/AMM.274.45 ↗
8. Aerodynamic effects as a maglev train passes through a noise barrier10.1007/s10494-020-00162-w ↗
9. Characteristics of aerodynamic pressure of vertical sound barriers on high speed railway bridge at 400 km/h
10. Study on the characteristic of aerodynamic load on sound barriers by 350-400km/h high-speed trains
11. Fatigue performance analysis of sound barrier under aerodynamic pressure of high-speed train
12. Numerical simulation study on high-speed train induced impulsive pressure on railway noise barrier based on ALE
13. Scholz, M., Buba, Z., and Boruttau, M. (2006). Consulting Report: Noise Barrier for High Speed Railway, Germany Planning Engineering Consulting+ Services Ltd.
14. Aerodynamics of high-speed trains10.1146/annurev.fluid.33.1.371 ↗
15. Fluid-structure interaction between trains and noise-reduction barriers numerical and experimental analysis10.2495/FSI090051 ↗
16. Study on the aerodynamic load characteristic of noise reduction barrier on high-speed railway10.1016/j.jweia.2018.03.031 ↗
17. Zou, Y., Fu, Z., He, X., Cai, C., Zhou, J., and Zhou, S. (2019). Wind load characteristics of wind barriers induced by high-speed trains based on field measurements. Appl. Sci., 9.10.3390/app9224865 ↗
18. Wind effects induced by high speed train pass-by in open air10.1016/j.jweia.2017.10.020 ↗
19. MacNeill, R.A., Holmes, S., and Lee, H.S. (2002, January 4–6). Measurement of the aerodynamic pressure produced by passing trains. Proceedings of the IEEE/ASME Joint Railroad Conference, Washington, DC, USA.10.1115/RTD2002-1643 ↗
20. Numerical methodology for evaluating the effect of sleepers in the underbody flow of a high-speed train10.1016/j.jweia.2017.04.017 ↗
21. (2018, March 11). Dr. White CRH2A-2010 out of Nanjing Station toward Linchang. Available online: https://www.bilibili.com/video/av20644660/?redirectFrom=h5.
22. (2019, November 25). After Ulm—Going Global (Part II). Available online: https://www.puxiang.com/galleries/74d6ec9b558fa4bc8907510008088e81.
23. (2023, May 20). CRH380AL out of Shenzhen North Station. Available online: https://www.bilibili.com/video/BV1Ms4y1z7TT/.
24. (2017, November 11). CRH400BF. Available online: https://tuchong.com/2694859/.
25. Study on dynamic characteristics of different forms of sound barriers10.3901/JME.2013.10.020 ↗
26. Flow structure around trains under side wind conditions: A numerical study10.1016/S0045-7930(99)00008-0 ↗
27. Effects of high wind on the aerodynamic performance of passenger trains running on embankments
28. Aerodynamics properties of high-speed train in strong wind
29. Fluid-solid coupling vibration response analysis of high-speed train passing through sound barrier
30. (2018). National Railway Administration of the People’s Republic of China: Aerodynamics for Railway Applications Part 4: Specification for Numerical Simulation of Train Aerodynamic Performance (Standard No. TB/T 3503.4-2018).
31. Shi, M. (2015). Experimental Study on Aerodynamic Loading Characteristics of High-Speed Railroad Sound Barriers. [Master’s Thesis, Beijing Jiaotong University].
32. The effect of the nose length on the aerodynamics of a high-speed train passing through a noise barrier10.1007/s10494-021-00284-9 ↗
33. Analysis of dynamic response of sound barrier under aerodynamic load
34. Numerical study on dynamic characteristics of Y-type sound barriers for high-speed railroads
35. Aerodynamic study of train-induced acoustic barrier structures
36. Lv, J. (2010). Research on High-Speed Railroad Plug-in Plate and Integral Sound Barrier Structure. [Ph.D. Thesis, Southeast University].
37. (2005). Railway Applications-Aerodynamics-Part 4: Requirements and Test Procedures for Aerodynamics on Open Track (Standard No. EN 14067-4).