Study on the Effect of Bridge Windbreaks on the Aerodynamic Characteristics of High-Speed Trains Meeting under Crosswind

Document Type : Regular Article

Authors

College of Mechanical Engineering, Xinjiang University, Urumqi 830047, China

Abstract

Under the influence of crosswind, when high-speed trains (HSTs) meet on a bridge, they produce complex vortexes, strong aerodynamic loads, and other aerodynamic effects. The purpose of this paper is to reveal the influences of crosswind and windbreaks on the vortexes generated by HSTs, the pressure distributions on the surfaces of the trains, and the aerodynamic load coefficients of the trains when they meet on a bridge, as well as the influence of the pressure waves generated by the trains on the windbreaks. The three-dimensional incompressible improved delayed detached eddy simulation (IDDES) method based on the SST k-ω turbulence model is used for numerical calculation purposes, and the overset grid method is used to realize the relative motions of the trains. The results show that the windbreaks can reduce the negative pressure (NP) imposed on the train surface and effectively improve the pressure distribution; crosswinds have a significant impact on the vortexes generated by trains, and the vortexes generated by the upstream train affect the stability of the downstream train; windbreaks can reduce the aerodynamic load applied when trains meet and thus improve the safety of the trains; and the head and tail waves generated by trains impose pressure on the windbreaks, which affects the reliability of the windbreaks installations. The simulation results can provide a preliminary reference for future research.

Keywords

Main Subjects

References

Cai, L., Lou, Z., Li, T., & Zhang, J. (2020). Numerical study on the effects of anti-snow deflector on the wind-snow flow underneath a high-speed train. Journal of Applied Fluid Mechanics, 14(1), 287-299. https://doi.org/10.47176/jafm.14.01.31375
Deng, E., Yang, W. C., He, X. H., Ye, Y. C., Zhu, Z. H. & Wang, A. (2020). Transient aerodynamic performance of high-speed trains when passing through an infrastructure consisting of tunnel–bridge–tunnel under crosswind. Tunnelling and Underground Space Technology, 102, 103440. https://doi.org/10.1016/j.tust.2020.103440
Deng, E., Yang, W. C., He, X. H., Zhu, Z., Wang, H. F., Wang, Y. W., Wang, A., & Zhou, L. (2021). Aerodynamic response of high-speed trains under crosswind in a bridge-tunnel section with or without a wind barrier. Journal of Wind Engineering and Industrial Aerodynamics, 210, 104502. https://doi.org/10.1016/j.jweia.2020.104502
Du, L. M., Bian, C. J., & Zhang, P. (2022). Aerodynamic response analysis of high-speed trains passing through high platforms under crosswind. Journal of Applied Fluid Mechanics, 15(5), 1525-1543. https://doi.org/10.47176/jafm.15.05.1045
He, Y. W. (2017). Design of the wind-resistant gallery in Lanzhou-Xinjiang high speed railway. Journal of Railway Engineering Society, 6, 55–9. https://doi.org/10.3969/j.issn.1006-2106.2017.06.011.
Ji, P., Feng, Z. L., & Liao, S. L. (2022). Pedigree aerodynamic shape design of high-speed trains. Journal of Applied Fluid Mechanics, 16(1), 193-204. https://doi.org/10.47176/jafm.16.01.1331
Li, M., Liu, B., Liu, T. H., & Guo, Z. J. (2020). Improved delayed detached eddy simulation of the slipstream and trackside pressure of trains with different horizontal profiles. Journal of Applied Fluid Mechanics, 13(2), 457-468. https://doi.org/10.29252/jafm.13.02.30291
Li, W. H., Liu, T. H., Zhang, J., Chen, Z. W., Chen, X. D., & Xie, T. Z. (2017). Aerodynamic Study of Two Opposing Moving Trains in a Tunnel Based on Different Nose Contours. Journal of Applied Fluid Mechanics, 10(5), 1375-1386.doi: 10.18869/acadpub.jafm.73.242.27738
Li, Y., Wei, D. H., Qin, D., Yang, Y. H., & Li, T. (2021). Research on the pressure wave characteristics of high-speed trains passing each other at speeds of 400 km /h and above. Journal of Railway Engineering Society, (08), 25-29+35. https://doi.org/10.3969/j.issn.1006-2106.2021.08.006
Li, Y. L., Yang, Y., Wu, M. X., & Qiang, S. Z. (2015). Aerodynamic characteristics in the process of two trains passing each other on bridge under cross wind action. China Railway Science, (02), 37-44. https://doi.org/10.3969/j.issn.1001-4632.2015.02.06.
Liang, H., Sun, Y., Li, T., & Zhang, J. (2022). Influence of marshalling length on aerodynamic characteristics of urban emus under crosswind. Journal of Applied Fluid Mechanics, 16(1), 9-20. https://doi.org/10.47176/jafm.16.01.1338
Lin, J., Kai, L., & Ming, R. (2019). The transient response of car body and side windows for high-speed trains passing by each other in a tunnel. Composites Part B: Engineering, 166, 284-297, https://doi.org/10.1016/j.compositesb.2018.11.144
Liu, F., Yao, S., Zhang, J., & Zhang, N. (2016). Aerodynamic effect of EMU passing by each other under crosswind. Journal of Central South University of Science and Technology, (01), 307-313. https://doi.org/10.3969/j.issn.1672-7029.2016.06.004.
Mei, Y. G., Li, M. H., & Guo, R. (2019). Aerodynamic load distribution characteristics of pressure wave when trains passing each other in high-speed railway tunnel. China Railway Science, (06), 60-67. https://doi.org/CNKI:SUN:ZGTK.0.2019-06-009
Meng, S., Meng, S., Wu, F., Li, X. L., & Zhou, D. (2021). Comparative analysis of the slipstream of different nose lengths on two trains passing each other. Journal of Wind Engineering and Industrial Aerodynamics, 208, 2021,104457. https://doi.org/10.1016/j.jweia.2020.104457
Niu, J. Q., Zhang, Y. C., Li, R., Chen, Z. W., Yao, H. D., & Wang, Y. (2022). Aerodynamic simulation of effects of one- and two-side windbreak walls on a moving train running on a double track railway line subjected to strong crosswind. Journal of Wind Engineering and Industrial Aerodynamics, 221, https://doi.org/10.1016/j.jweia.2022.104912
Ouyang, D. H., Deng, E., Yang, W. C., Ni, Y. Q., Chen, Z. W. , & Zhu, Z. H. (2023). Nonlinear aerodynamic loads and dynamic responses of high-speed trains passing each other in the tunnel–embankment section under crosswind. Nonlinear Dynamics 111, 11989–12015. https://doi.org/10.1007/s11071-023-08479-7
Qiao, Y. J., He, D. H., Chen, H. C., & Zhang, C. (2016). Study on influence of line spacing of high speed railway on pressure wave due to meeting of two oncoming trains. High Speed Railway Technology, (06),7-11+18. https://doi.org/10.3969/j.issn.1674-8247.2016.06.002.
Shur, M. L., Spalart, P. R., Strelets, M. K., & Travin, A. K. (2008). A hybrid RANS-LES approach with delayed-DES and wall-modelled LES capabilities. International Journal of Heat and Fluid Flow, 29(6), 1638-1649. https://doi.org/10.1016/j.ijheatfluidflow.2008. 07.001
Wang, M., Wang, Z. X., Qiu, X. W., Li, X. X., & Li, X. Z. (2022). Windproof performance of wind barrier on the aerodynamic characteristics of high-speed train running on a simple supported bridge. Journal of Wind Engineering and Industrial Aerodynamics, 223, 104950. https://doi.org/10.1016/j.jweia.2022.104950
Wu, Z., Zhou, D., Li, S., Yang, J., Chen, G., & Li, X. (2022). Numerical analysis of the effect of streamlined nose length on slipstream of high-speed train passing through a tunnel. Journal of Applied Fluid Mechanics, 15(6), 1933-1945. https://doi.org/10.47176/jafm.15.06.1189
Xi, Y. H., Mao, J., Liu, R. D., & Yang, G. W. (2016). Study on pressure wave amplitude of high-speed train meeting on open line. Journal of South China University of Technology (Natural Science Edition), (03), 118-127. https://doi.org/10.3969/j.issn.1000-565X.2016.03.017.
Xia, Y. T., Liu, T. H., Su, X. C., Jiang, Z. H., Chen, Z. W., & Guo, Z. J. (2022). Aerodynamic influences of typical windbreak wall types on a high-speed train under crosswind. Journal of Wind Engineering and Industrial Aerodynamics, https://doi.org/10.1016/j.jweia.2022.105203
Xiang, H. Y., Li, Y. L., Wang, B., & Liao, H. L. (2015). Numerical simulation of the protective effect of railway wind barriers under crosswind. International Journal of Rail Transportation. http://dx.doi.org/10.1080/23248378.2015.1054906
Xu, G., Li, H., Zhang, J., & Liang, X. (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. https://doi.org/10.29252/jafm.12.06.29938
Xu, J. L., Sun, J. C., Mei, Y. G., & Wang, R. L. (2016). Numerical simulation on crossing pressure wave characteristics of two high-speed trains in tunnel. Journal of Vibration and Shock, (03),184-191. https://doi:10.13465/j.cnki.jvs.2016.03.029
Xu, R. Z., Wu, F., Su, W. H., Ding, J. F., & Vainchtein, D. (2020). A numerical approach for simulating a high-speed train passing through a tornado-like vortex. Journal of Applied Fluid Mechanics, 13(5), 1635-1648. https://doi.org/10.36884/jafm.13.05.31080
Yang, W. C., Deng, E., He, X. H., Luo, L. S., Zhu, Z. H., Wang, Y. W. & Li, Z. T. (2021). Influence of wind barrier on the transient aerodynamic performance of high-speed trains under crosswinds at tunnel–bridge sections. Engineering Applications of Computational Fluid Mechanics, 15(1), 727-746, https://doi.org/10.1080/19942060.2021.1918257
Yao, Y., Sun, Z., Li, G., Prapamonthon, P., Cheng, G., & Yang, G. (2022). Numerical investigation on aerodynamic drag and noise of pantographs with modified structures. Journal of Applied Fluid Mechanics, 15(2), 617-631. https://doi.org/10.47176/jafm.15.02.32849
Zhang, J., Gao, G., Liu, T., & Li, Z. (2017a). Shape optimization of a kind of earth embankment type windbreak wall along the lanzhou-xinjiang railway. Journal of Applied Fluid Mechanics, 10(4), 1189-1200. https://doi.org/10.18869/acadpub.jafm.73.241.27353
Zhang, J., He, K., Wang, J., Liu, T., Liang, X., & Gao, G. (2019). Numerical simulation of flow around a high-speed train subjected to Different Windbreak Walls and Yaw Angles. Journal of Applied Fluid Mechanics, 12(4), 1137-1149. https://doi:.org/10.29252/jafm.12.04.29484
Zhang, J., He, K., Xiong, X., Wang, J., & Gao, G. (2017b). Numerical simulation with a des approach for a high-speed train subjected to the crosswind. Journal of Applied Fluid Mechanics, 10(5), 1329-1342. https://doi.org/10.18869/acadpub.jafm.73.242.27566
Zhou, D., Xia, C. J., Wu, L. L., & Meng, S. (2023). Effect of the wind speed on aerodynamic behaviours during the acceleration of a high-speed train under crosswind. Journal of Wind Engineering and Industrial Aerodynamics. Volume 232, 105287. https://doi.org/10.1016/j.jweia.2022.105287

Files

Cited by

History

  • Received: 11 August 2023
  • Revised: 21 November 2023
  • Accepted: 23 November 2023
  • Available online: 30 January 2024

Share

How to cite

Statistics