Aerodynamic Response Analysis of High-Speed Trains Passing through High Platforms under Crosswind

Document Type : Regular Article

Authors

1 College of Locomotive and Rolling Stock Engineering, Dalian Jiaotong University, Dalian, Liaoning, 116028, China

2 College of Civil Engineering, Dalian Jiaotong University, Dalian, Liaoning, 116028, China

10.47176/jafm.15.05.1045

Abstract

At stations, high-speed trains frequently pass through the platform without stopping, where a combination of two island platforms represents the most common layout. The interaction between the train and the platform leads to certain problems, such as reductions in the comfort of the waiting environment and the safety of people around the platform. However, in the literature, there are few studies on the aerodynamic response between the train and the platform and on the airflow field characteristics above the platform when the train passes through the platform under different crosswind speeds. Therefore, we attempted to fill this gap using numerical methods to study the aerodynamic characteristics of the train passing through island platforms at 350 km/h under different crosswind speeds (10, 15, 20, 25, and 30 m/s). The aerodynamic response of high-speed trains combined with the flow field distribution is discussed in depth. We studied the wind speed distribution at different longitudinal distances above the platform, and obtained the position of the maximum wind speed when the head and tail car passed through the platform. Based on this, the wind speed distribution at different lateral distances above the platform was studied, and the reasons for the airflow changes above the platform were analyzed. The research results show that when a train enters a platform at 350km/h under a crosswind speed of 30 m/s, the reductions in the drag and lateral force of the whole vehicle reach their maximum, which are 50.44% and 66.51%, respectively. However, the change trend in the whole car lift force is opposite to that of the drag and lateral force, which increase when the train enters the platform and decrease when it leaves the platform. The largest growth in lift force is 102.39%, which occurred at a wind speed of 30m/s. The airflow velocity above the platform will increase rapidly as the head and tail car pass through the platform. A higher crosswind speed will result in the monitoring point of platform reaching its maximum airflow speed to an earlier time as the tail car passes through the platform. Meanwhile, we found that the lateral distance 1 – 2m above the platform is the area with the largest wind speed attenuation.

Keywords


Bell, J. R., D. Burton, M. C. Thompson, A. H. Herbst and J. Sheridan (2016). Dynamics of trailing vortices in the wake of a generic high-speed train. Journal of Fluids and Structures 65, 238-256.##
Cai, H. M., J. Y. Zhang and T. Li (2018). Research on Aerodynamic Performance and Flow Field of High Speed Train Bogie Region. Journal of Mechanical Engineering 54(12), 49-57.##
Cheli, F., F. Ripamonti, D. Rocchi and G. Tomasini (2009). Aerodynamic behaviour investigation of the new EMUV250 train to cross wind. Journal of Wind Engineering & Industrial Aerodynamics 98(4), 189-201.##
Cui, T. and W. H. Zhang (2011). Fluid-Solid Coupling Vibration of Train Passing through Platform at High Speed in Cross Wind. Journal of Southwest Jiaotong University 46(3), 404-408.##
Deng, E., W. C. Yang, M. F. Lei, Z. H. Zhu and P. P. Zhang (2019). Aerodynamic loads and traffic safety of high-speed trains when passing through two windproof facilities under crosswind: A comparative study. Engineering Structures 188, 320-339.##
Dong, T. Y., G. Minelli, J. B. Wang, X. F. Liang and S. Krajnović (2020). The effect of reducing the underbody clearance on the aerodynamics of a high-speed train. Journal of Wind Engineering & Industrial Aerodynamics 204, 1-15.##
Gao, Y. F., Z. Liu and X. Q. Zou (2018). Analysis of thermal comfort of island platform in a subway screen door system. Refrigeration and Air-conditioning 18(8), 47-55.##
Hemida, H and S. Krajnović (2010). LES study of the influence of the nose shape and yaw angles on flow structures around trains. Journal of Wind Engineering & Industrial Aerodynamic 98(1), 34-46.##
Huang, Y. D., C. Li and C. Kim (2012). A numerical analysis of the ventilation performance for different ventilation strategies in a subway tunnel. Journal of Hydrodynamics 24(2), 193-201.##
Jin, H., L. G. Yang and K. Chen (2015). Research on High-Speed Subway Train Passing through the Station. Acta Scientiarum Naturalium Universitatis Pekinensis 51(4), 606-612.##
Khayrullina, A., B. Blocken, W. Janssen and J. Straathof (2015). CFD simulation of train aerodynamics: train-induced wind conditions at an underground railroad passenger platform. Wind Engineering and Industrial Aerodynamics 139, 100-110.##
Khier, W., M. Breuer and F. Durst (2000). Flow structure around trains under side wind conditions: a numerical study. Computers and Fluids 29(2), 179-195.##
Li, T., J. Zhang, M. Rashidi and M. Yu (2019). On the Reynolds-Averaged Navier-Stokes Modelling of the Flow around a Simplified Train in Crosswinds. Journal of Applied Fluid Mechanics 12(2), 551-563.##
Liang, X. F., X. B. Li, G. Chen, B. Sun, Z. Wang, X. H. Xiong, J. Yin, M. Z. Tang, X. L. Li and K. Siniša (2020a). On the aerodynamic loads when a high speed train passes under an overhead bridge. Journal of Wind Engineering & Industrial Aerodynamics 202.##
Liang, X. F., C. Guang, X. B. Li and D. Zhou (2020b). Numerical simulation of pressure transients caused by high-speed train passage through a railway station. Building and Environment 184.##
Liu, R. D., J. Mao and Y. H. Xi (2018). Aerodynamic load features of windbreaks of high speed railway under coupled action of cross wind and high speed train wind. Journal of Vibration and Shock 37(3), 154-166.##
Maleki, S., D. Burton and Mark C. Thompson (2017). Assessment of various turbulence models (ELES, SAS, URANS and RANS) for predicting the aerodynamics of freight train container wagons. Journal of Wind Engineering & Industrial Aerodynamics 170, 68-80.##
Mao, J., Y. H. Xi and G. W. Yang (2011). Research on Influence of Characteristics of Cross Wind Field on Aerodynamic Performance of a High-speed Train. Journal of the China Railway Society 33(4), 22-30.##
Mao, J., Y. H. Xi and G. W. Yang (2012). Numerical Analysis on the Influence of Train Formation on the Aerodynamic Characteristics of High-Speed Trains under Crosswind. China Railway Science 33(1), 78-85.##
Niu, J. Q., D. Zhou, X. F. Liang, T. H. Liu and S. Liu (2017). Numerical study on the aerodynamic pressure of a metro train running between two adjacent platforms. Tunnelling and Underground Space Technology 65, 187-199.##
Pan, Y. C., J. W. Yao, C. Liang and C. F. Li (2017). Analysis on Turbulence Characteristics of Vortex Structure in Near Wake of High Speed Train. China Railway Science 38(2), 83-88.##
Peng, L. M., C. Liu and C. H. Shi (2013). Characteristics of the Train Wind and Analysis of Personnel Safety in The High-speed Railway Station. Journal of Zhengzhou University (Engineering Science) 34(2), 99-102.##
People's Republic of China (2014). Railway Technical Rules Management. China Railway Publishing House.##
Ren, Z. S., Y. G. Xu, L. L. Wang and Y. Z. Qiu (2006). Study on the Running Safety of High-speed Trains under Strong Cross Winds. Journal of the China Railway Society 28(6), 46-50.##
Wang, K., H. Y. Pan, T. J. Zhang and H. T. Wang (2022). Experimental Study of Prefabricated Crack Propagation in Coal Briquettes under the Action of a CO2 Gas Explosion. ACS omega 6(38), 24462-24472.##
Xi, Y. H., (2012). Research on Aerodynamic Characteristics and Running Safety of High-speed Trains under cross winds. Beijing Jiaotong University, Ph.D. dissertation.##
Xi, Y. H., J. Mao and L. Gao (2015). Aerodynamic force/moment for high-speed train in crosswind field based on DES. Journal of Central South University (Science and Technology) 46(3), 1129-1139.##
Xiang, C. Q., W. H. Guo, T. Chen and J. W. Zhang (2014). Numerical study on the effect of wind barrier on aerodynamic performance of high-speed trains on bridge. China Railway Science 35(5), 113-120.##
Xiao, C. H., M. Z. Yang, C. D. Tan and Z. J. Lu (2020). Effects of platform sinking height on the unsteady aerodynamic performance of high-speed train pantograph. Journal of Wind Engineering & Industrial Aerodynamics 204.##
Xie, J. H. (2017). Construction boundary control technology of railway high platform. Doors & Windows 5, 191-192.##
Xu, G., H. Li, J. Zhang and X. Liang (2019). Effect of Two Bogie Cavity Configurations on the Underbody Flow and Near Wake Structures of a High-Speed Train. Journal of Applied Fluid Mechanics 12(6), 1945-1955.##
Xu, R. Z., F. Wu, W. H. Su, J. F. Ding and D. Vainchtein (2020). A Numerical Approach for Simulating a High-Speed Train passing through a Tornado-Like Vortex. Journal of Applied Fluid Mechanics 13(05), 1635-1648.##
Yang, H., L. Jia and P. L. Huang (2010). Numerical Simulation of the Impact of Train Movement on Subway Platform Air Environment. Chinese Journal of Underground Space and Engineering 6(2), 270-275.##
Yang, W. C., E. Deng, M. F. Lei, Z. H. Zhu and P. P. Zhang (2019). Transient aerodynamic performance of high-speed trains when passing through two windproof facilities under crosswinds: A comparative study. Engineering Structures 188, 729-744.##
Zhang, J., K. He, X. Xiong, J. Wang and G. Gao (2017). Numerical Simulation with a DES Approach for a High-Speed Train Subjected to the Crosswind. Journal of Applied Fluid Mechanics 10(5), 1329-1342.##
Zhong, W., R. Tu, J. P. Yang and T. S. Liang (2013). Numerical Simulation on the Characteristics of Smoke Flow under Piston Wind in Subway Station Hall Fire. China Railway Science 34(4), 118-124.##
Zhou, D., H. Q. Tian, J. Zhang and M. Z. Yang (2014). Pressure transients induced by a high-speed train passing through a station. Journal of Wind Engineering and Industrial Aerodynamics 135, 1-9.##
Zhou, Y. L., H. L. Wang, H. Q. Bi and J. Wang (2021). Experimental and numerical study of aerodynamic pressures on platform screen doors at the overtaking station of a high-speed subway. Building and Environment 191.##
Zhu, J. Y., Z. W. Hu and D. J. Thompson (2015). Analysis of Aerodynamic and Aero Acoustic Behavior of a Simplified High-Speed Train Bogie. Noise and Vibration Mitigation for Rail Transportation Systems 37, 489-496.##
Volume 15, Issue 5
September and October 2022
Pages 1525-1543
  • Received: 20 December 2021
  • Revised: 05 May 2022
  • Accepted: 30 May 2022
  • First Publish Date: 03 June 2022