Train-induced aerodynamic characteristics of vertical sound barriers influenced by several factors

Abstract

Investigations into the aerodynamic properties of vertical sound barriers exposed to high-speed operations employ computational fluid dynamics. The primary focus of this research is to evaluate the influence of train speed and the distance (D) from the track centerline under various operating conditions. The findings elucidate a marked elevation in the aerodynamic effect amplitude on sound barriers as train speeds increase. In single-train passages, the aerodynamic effect amplitude manifests a direct relationship with the square of the train speed. When two trains pass each other, the aerodynamic amplitude intensifies due to an additional aerodynamic increment on the sound barrier. This increment exhibits an approximate quadratic correlation with the retrograde train speed. Notably, the impact of high-speed trains on sound barrier aerodynamics surpasses that of low-speed trains, and this discrepancy amplifies with larger speed differentials between trains. Moreover, the train-induced aerodynamic effect diminishes significantly with greater distance (D), with occurrences of pressure coefficient (C _P) exceeding the standard thresholds during dual-train passages. This study culminates in the formulation of universal equations for quantifying the influence of train speed and distance (D) on sound barrier aerodynamic characteristics across various operational scenarios.

Keywords

Aerodynamic characteristic / Sound barrier / Two trains passing each other / Distance from track centerline / CFD simulation

References

[1.] Kim H, Hu Z, Thompson D. Effect of cavity flow control on high-speed train pantograph and roof aerodynamic noise. Railw Eng Sci, 2020, 28(1): 54-74,

[2.] Latorre Iglesias E, Thompson DJ, Smith M, et al.. Anechoic wind tunnel tests on high-speed train bogie aerodynamic noise. Int J Rail Transp, 2017, 5(2): 87-109,

[3.] Mellet C, Létourneaux F, Poisson F, et al.. High speed train noise emission: latest investigation of the aerodynamic/rolling noise contribution. J Sound Vib, 2006, 293(3–5): 535-546,

[4.] Wang D, Ge J. Vibration and acoustic radiation of bogie area under random excitation in high-speed trains. J Mod Transp, 2019, 27(2): 120-128,

[5.] Zhang X, Zhai W, Chen Z, et al.. Characteristic and mechanism of structural acoustic radiation for box girder bridge in urban rail transit. Sci Total Environ, 2018, 627: 1303-1314,

[6.] Li X, Yang D, Chen G, et al.. Review of recent progress in studies on noise emanating from rail transit bridges. J Mod Transp, 2016, 24(4): 237-250,

[7.] Ouakka S, Verlinden O, Kouroussis G. Railway ground vibration and mitigation measures: benchmarking of best practices. Rail Eng Sci, 2022, 30: 1-22,

[8.] NPC Standing Committee (2022) Law of the People’s Republic of China on the prevention and control of noise pollution (in Chinese)

[9.] Zhao H, Zhai W, Chen Z. Effect of noise barrier on aerodynamic performance of high-speed train in crosswind. Wind Struct, 2015, 20(4): 509-525,

[10.] Lichtneger P, Ruck B. Full scale experiments on vehicle induced transient pressure loads on roadside walls. J Wind Eng Ind Aerod, 2018, 174: 451-457,

[11.] Wang D, Wang B, Chen A. Vehicle-induced aerodynamic loads on highway sound barriers part 2: numerical and theoretical investigation. Wind Struct, 2013, 17(5): 479-494,

[12.] Li R. . Aerodynamic effects of high speed trains, 2016 China Railway Publishing House (in Chinese)

[13.] Carassale L, Brunenghi MME. Dynamic response of trackside structures due to the aerodynamic effects produced by passing trains. J Wind Eng Ind Aerod, 2013, 123: 317-324,

[14.] Liu D, Wang C, Gonzalez-Libreros J, et al.. A review on aerodynamic load and dynamic behavior of railway noise barriers when high-speed trains pass. J Wind Eng Ind Aerodyn, 2023, 239,

[15.] Rashidi MM, Hajipour A, Li T, et al.. A review of recent studies on simulations for flow around high-speed trains. J Appl Comput Mech, 2019, 5(2): 311-333

[16.] Zhou D, Tian H, Zhang J, et al.. Pressure transients induced by a high-speed train passing through a station. J Wind Eng Ind Aerod, 2014, 135: 1-9,

[17.] Wu J, Li X, Cai CS, et al.. Aerodynamic characteristics of a high-speed train crossing the wake of a bridge tower from moving model experiments. Railw Eng Sci, 2022, 30(2): 221-241,

[18.] Li X, Tan Y, Qiu X, et al.. Wind tunnel measurement of aerodynamic characteristics of trains passing each other on a simply supported box girder bridge. Railw Eng Sci, 2021, 29(2): 152-162,

[19.] Kim JY, Kim KY. Experimental and numerical analyses of train-induced unsteady tunnel flow in subway. Tunn Undergr Sp Tech, 2007, 22(2): 166-172,

[20.] Du J, Zhang L, Yang M, et al.. Moving model experiments on transient pressure induced by a high-speed train passing through noise barrier. J Wind Eng Ind Aerod, 2020, 204,

[21.] Vittozzi A, Silvestri G, Genca L, et al.. Fluid dynamic interaction between train and noise barriers on high-speed lines. Proc Eng, 2017, 199: 290-295,

[22.] Tokunaga M, Sogabe M, Santo T, et al.. Dynamic response evaluation of tall noise barrier on high speed railway structures. J Sound Vib, 2016, 366: 293-308,

[23.] Lü M, Li Q, Ning Z, Ji Z. Study on the aerodynamic load characteristic of noise reduction barrier on high-speed railway. J Wind Eng Ind Aerod, 2018, 176: 254-262,

[24.] Xiong X, Yang B, Wang K, et al.. Full-scale experiment of transient aerodynamic pressures acting on a bridge noise barrier induced by the passage of high-speed trains operating at 380–420 km/h. J Wind Eng Ind Aerodyn, 2020, 204,

[25.] Zou Y, Fu Z, He X, et al.. Wind load characteristics of wind barriers induced by high-speed trains based on field measurements. Appl Sci, 2019, 9(22): 4865,

[26.] Xiong X, Li A, Liang X, et al.. Field study on high-speed train induced fluctuating pressure on a bridge noise barrier. J Wind Eng Ind Aerod, 2018, 177: 157-166,

[27.] Rocchi D, Tomasini G, Schito P, et al.. Wind effects induced by high speed train pass-by in open air. J Wind Eng Ind Aerod, 2018, 173: 279-288,

[28.] Sterling M, Baker CJ, Jordan SC, et al.. A study of the slipstreams of high-speed passenger trains and freight trains. Proc Inst Mech Eng Part F–J Rail Rapid Transit, 2008, 222(2): 177-193,

[29.] Xia C, Wang H, Shan X, et al.. Effects of ground configurations on the slipstream and near wake of a high-speed train. J Wind Eng Ind Aerod, 2017, 168: 177-189,

[30.] Baker CJ, Jordan S, Gilbert T, et al.. Transient aerodynamic pressures and forces on trackside and overhead structures due to passing trains. Part 1: model-scale experiments. Proc Inst Mech Eng Part F–J Rail Rapid Transit, 2014, 228(1): 37-56,

[31.] Meng S, Zhou D, Xiong X, et al.. The effect of the nose length on the aerodynamics of a high-speed train passing through a noise barrier. Flow Turbul Combust, 2022, 108(2): 411-431,

[32.] Luo C, Zhou D, Chen G, et al.. Aerodynamic effects as a maglev train passes through a noise barrier. Flow Turbul Combust, 2020, 105(3): 761-785,

[33.] Belloli M, Pizzigoni B, Ripamonti F, et al.. Fluid-structure interaction between trains and noise-reduction barriers: numerical and experimental analysis. WIT Transactions on the Built Environ, 2009, 105: 49-60,

[34.] State Railway Administration (2014) Code for design of high speed railway. TB 1062-2014 (in Chinese)

[35.] CEN (2013) Railway applications—aerodynamics—part 4: requirements and test procedure for aerodynamics on open track, EN 14067-4

[36.] CEN (2003) Eurocode 1: actions on structures—part 2: traffic loads on bridges, EN 1991-2

[37.] UIC (2015) Effect of the slipstream of passing trains on structures adjacent to the track, UIC 779-1

[38.] Deutsche Bahn AG (2010) Ril 804.5501A05—Lärmschutzwände dynamische analyse für Druck-Sog-Einwirkung

[39.] China’s State Council Information Office (2020) Sustainable development of transportation in China. http://english.scio.gov.cn/whitepapers/2020-12/22/content_77040131_7.htm. Accessed 5 July 2023

[40.] Qiu X, Li X, Zheng J, et al.. Fluctuating wind pressure on vertical sound barrier during two high-speed trains passing each other. Int J Rail Transp, 2023, 11(1): 111-128,

[41.] Han Y, Yao S. Scale effect analysis in aerodynamic performance of high-speed train. J Zhejiang Univ (Eng Sci), 2017, 51(12): 2383-2391 (in Chinese)

[42.] Yao Z, Zhang N, Chen X, et al.. The effect of moving train on the aerodynamic performances of train-bridge system with a crosswind. Eng Appl Comp Fluid Mech, 2020, 14(1): 222-235

[43.] Xue P, You S, Chao J, et al.. Numerical investigation of unsteady airflow in subway influenced by piston effect based on dynamic mesh. Tunn Undergr Space Technol, 2014, 40: 174-181,

[44.] Niu J, Zhou D, Liang X, et al.. Numerical study on the aerodynamic pressure of a metro train running between two adjacent platforms. Tunn Undergr Sp Tech, 2017, 65: 187-199,

[45.] Liu F, Yao S, Zhang J, Zhang Y. Effect of increased linings on micro-pressure waves in a high-speed railway tunnel. Tunn Undergr Sp Tech, 2016, 52: 62-70,

[46.] Tian H. . Train aerodynamics, 2007 Beijing China Railway Publishing House (in Chinese)

[47.] Horie A, Sugiyama T (1986) Field test of train draft on Tohoku Shinkansen. Technical report A-86, Railway technical research pre-report

Funding

National Natural Science Foundation of China(52208505)