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A novel bionic Coleoptera pantograph deflector for aerodynamic drag reduction of a high-speed train

一种用于高速列车受电弓区域气动减阻的新型鞘翅目仿生导流罩

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Abstract

As an important source of train aerodynamic drag, the pantograph area is a key region which takes up about 10% contribution of the total. Thus, improving the pressure distribution in the pantograph area becomes a potential and effective method of reducing train aerodynamic drag. Based on the biological pattern of Coleoptera, a novel bionic elytron (i. e., deflector) installed on the pantograph areas of an eight-car grouping high-speed train was proposed to smooth the flow. Four calculation cases were set up, i. e., the original model (Model I), pantograph I with a deflector (Model II), pantograph II with a deflector (Model III), and pantograph I and II with deflectors (Model IV), to explore the mechanism of aerodynamic drag reduction for the train and improve its aerodynamic performance. The results show that after installing the pantograph deflector the aerodynamic drag force of the pantograph area is significantly reduced. The maximum drag reduction in pantograph I region is up to 84.5%, and the maximum drag reduction in pantograph II region is 25.0%. When the deflectors are installed in both pantograph I and pantograph II areas, the total drag reduction in pantographs I and II areas can be achieved by 49.6%. The air flows over the pantograph area in a smoother way with less blockage effect as compared to the base case without deflectors. However, the downstream flow velocity speeds up and impacts the corresponding region, e.g., windshields, leading to an increase of aerodynamic drag. When the deflector is installed in the area of pantograph I or pantograph II alternatively, the total drag of the eight-car group train reduces by up to 4.6% and 1.8%, respectively, while the drag reduction can be up to 6.3% with deflectors installed in both pantograph I and II areas. This paper can provide references for the aerodynamic design of a new generation of highspeed trains.

摘要

受电弓区域是列车气动阻力的重要来源, 其贡献率约为10%, 是列车气动阻力的关键区域。因 此, 改善受电弓区压力分布成为减小列车气动阻力的潜在有效方法。基于鞘翅目昆虫的生物形态, 提 出了一种新型的仿生鞘翅目导流罩, 将其安装在8 节编组的高速列车受电弓区域, 以实现该区域的空 气流动平顺。建立了原始模型(模型I)、带导流罩的受电弓I(模型II)、带导流罩的受电弓II(模型III)、 带导流罩的受电弓I 和受电弓II(模型IV)4 个计算模型, 探讨列车气动减阻机理, 提高列车气动性能。 结果表明, 安装受电弓导流罩后, 受在电弓区域的气动阻力显著减小。受电弓I 区域最大减阻达 84.5%, 受电弓II 区域最大减阻为25.0%。当受电弓I 区域和受电弓II 区域同时安装导流罩时, 受电弓I 区和受电弓II 区总减阻可达49.6%。与没有导流罩的原始模型相比, 受电弓区域的空气流动更顺畅, 堵塞效应更小。但是, 下游流速加快, 冲击风挡区域, 导致气动阻力增大。在受电弓I 区域或受电弓II 区域安装导流罩时, 8 节列车的总阻力分别降低了4.6%和1.8%, 而在受电弓I 区域和受电弓II 区域同 时安装导流罩时, 列车的总阻力降低了6.3%。本文可为新一代高速列车的气动设计提供参考。

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References

  1. XUE Ru-dai, XIONG Xiao-hui, WANG Kai-wen, et al. Influence of variable cross-section on pressure transients and unsteady slipstream in a long tunnel when high-speed train passes through [J]. Journal of Central South University, 2023, 30(3): 1027–1046. DOI: https://doi.org/10.1007/s11771-023-5273-0.

    Article  Google Scholar 

  2. ZHANG Jie, WANG Yu-ge, HAN Shuai, et al. A novel arch lattice-shell of enlarged cross-section hoods for micro-pressure wave mitigation at exit of maglev tunnels [J]. Tunnelling and Underground Space Technology, 2023, 132, 104859. DOI: https://doi.org/10.1016/j.tust.2022.104859.

    Article  Google Scholar 

  3. HAN Shuai, ZHANG Jie, XIONG Xiao-hui, et al. Influence of high-speed maglev train speed on tunnel aerodynamic effects [J]. Building and Environment, 2022, 223: 109460. DOI: https://doi.org/10.1016/j.buildenv.2022.109460.

    Article  Google Scholar 

  4. LI Wen-hui, LIU Tang-hong, PEDRO M V, et al. Aerodynamic effects on a railway tunnel with partially changed cross-sectional area [J]. Journal of Central South University, 2022, 29(8): 2589–2604. DOI: https://doi.org/10.1007/s11771-022-5113-7.

    Article  Google Scholar 

  5. YANG Bo, XIONG Xiao-hui, HE Zhao, et al. Feasibility of replacing the 3-coach with a 1.5-coach grouping train model in wind tunnel experiment at different yaw angles [J]. Journal of Central South University, 2022, 29(6): 2062–2073. DOI: https://doi.org/10.1007/s11771-022-5060-3.

    Article  Google Scholar 

  6. ZHANG Jie, ADAMU A, HAN Shuai, et al. A numerical investigation of inter-carriage gap configurations on the aerodynamic performance of a wind-tunnel train model [J]. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2023, 237(6): 1–17. DOI: https://doi.org/10.1177/09544097221136914.

    Article  Google Scholar 

  7. ZHOU Dan, WU Li-liang, TAN Chang-da, et al. Study on the effect of dimple position on drag reduction of high-speed maglev train [J]. Transportation Safety and Environment, 2021, 3(4): tdab027. DOI: https://doi.org/10.1093/tse/tdab027.

    Article  Google Scholar 

  8. SUN Zhi-kun, WANG Tian-tian, WU Fan. Numerical investigation of influence of pantograph parameters and train length on aerodynamic drag of high-speed train [J]. Journal of Central South University, 2020, 27(4): 1334–1350. DOI: https://doi.org/10.1007/s11771-020-4370-6.

    Article  Google Scholar 

  9. RAGHUNATHAN R S, KIM H D, SETOGUCHI T. Aerodynamics of high-speed railway train [J]. Progress in Aerospace Sciences, 2002, 38(6–7): 469–514. DOI: https://doi.org/10.1016/S0376-0421(02)00029-5.

    Article  Google Scholar 

  10. ZHANG Jing, LIU Zhi-gang, LU Xiao-bing, et al. Study on aerodynamics development of high-speed pantograph and catenary [J]. Journal of the China Railway Society, 2015, 31(1): 7–15. DOI: https://doi.org/10.3969/j.issn.1001-8361.2015.01.002.

    Google Scholar 

  11. TIAN Hong-qi. Review of research on high-speed railway aerodynamics in China [J]. Transportation Safety and Environment, 2019, 1(1): 1–21. DOI: https://doi.org/10.1093/tse/tdz014.

    Article  Google Scholar 

  12. LIU Hai-tao, LIU Zhi-long. Study on drag and noise reduction of pantograph rods based on bionic non-smooth structures [J]. Noise and Vibration Control, 2018, 38(s1): 269–272. (in Chinese)

    MathSciNet  Google Scholar 

  13. ZHANG Chang-liang, LIU Hai-tao, ZHOU Si, et al. Reduction of drag and noise for pantograph rods with spanwise waviness structure [J]. Noise and Vibration Control, 2021, 41(6), 126–133. (in Chinese)

    Google Scholar 

  14. XU Zhi-long. Study on aerodynamic characteristics of pantograph of high-speed train based on non-smooth structure [D]. Nanchang, China: East China Jiaotong University. (in Chinese)

  15. LEE Y, RHO J, KIM K H, et al. Experimental studies on the aerodynamic characteristics of a pantograph suitable for a high-speed train [J]. Proceedings of the Institution of Mechanical Engineers F: Journal of Rail and Rapid Transit, 2015, 229(2): 136–149. DOI: https://doi.org/10.1177/0954409713507561.

    Article  Google Scholar 

  16. YANG Guo-wei, GUO Di-long, YAO Shuan-bao, et al. Aerodynamic design for China new high-speed trains [J]. Science China: Technological Sciences, 2012, 55(7): 1923–1928. DOI: https://doi.org/10.1007/s11431-012-4863-0.

    Article  Google Scholar 

  17. ZHANG L, ZHANG J Y, LI T, et al. Aerodynamic shape optimization of the pantograph fairing of a high-speed train [C]//First International Conference on Rail Transportation. Reston, VA, USA: American Society of Civil Engineers, 2017: 977–987. DOI: https://doi.org/10.1061/9780784481257.098.

    Google Scholar 

  18. NAKAKURA Y, SAKANOUE K, MINAMI Y, et al. Development of pantograph for the Series N700 Shinkansen [C]//9th World Congress on Railway Research. Lille, France, 2011: 1–9.

  19. DING San-san, LI Qiang, TIAN Ai-qin, et al. Aerodynamic design on high-speed trains [J]. Acta Mechanica Sinica, 2016, 32(2): 215–232. DOI: https://doi.org/10.1007/s10409-015-0546-y.

    Article  Google Scholar 

  20. XIAO Cheng-nian, YANG Ming-zhi, TAN Chang-da, et al. Effects of platform sinking height on the unsteady aerodynamic performance of high-speed train pantograph [J]. Journal of Wind Engineering and Industrial Aerodynamics, 2020, 204: 104284. DOI: https://doi.org/10.1016/j.jweia.2020.104284.

    Article  Google Scholar 

  21. NIU Ji-qiang, ZHOU Dan, LIANG Xi-feng, et al. Influence of diversion device on unsteady aerodynamic performance of pantograph [J]. Journal of Zhejiang University(Engineering Science), 2017, 51(4): 752–760. DOI: https://doi.org/10.3785/j.issn.1008-973X.2017.04.016.

    Google Scholar 

  22. TB/T 3503.4. Railway applied aerodynamics. Part 4: Code for numerical simulation of train aerodynamic performance [S].

  23. ZHANG Jie, ADAMU A, SU Xin-chao, et al. Effect of simplifying bogie regions on aerodynamic performance of high-speed train [J]. Journal of Central South University, 2022, 29(5): 1717–1734. DOI: https://doi.org/10.1007/s11771-022-4948-2.

    Article  Google Scholar 

  24. MOHEBBI M, MOHAMMAD A R. 2D and 3D numerical and experimental analyses of the aerodynamic effects of air fences on a high-speed train[J]. Wind and Structures - An Internation Journal, 2021, 32(6): 539–550. DOI: https://doi.org/10.12989/was.2021.32.6.539.

    Google Scholar 

  25. WANG Fan, GUO Zhan-hao, SHI Zou-liang, et al. A study of crosswind characteristics on aerodynamic performance of high-speed trains on embankment [J]. Iranian Journal of Science and Technology, Transactions of Mechanical Engineering, 2023, 47(2): 417–431. DOI: https://doi.org/10.1007/s40997-022-00534-9.

    Article  Google Scholar 

  26. ADAMU A, ZHANG J, GIDADO F, et al. An investigation of influence of windshield configuration and train length on high-speed train aerodynamic performance [J]. Journal of Applied Fluid Mechanics, 2023, 16(2): 337–352. DOI: https://doi.org/10.47176/jafm.16.02.1433.

    Article  Google Scholar 

  27. CEN EN 14067-4. Railway applications-Aerodynamics. Part 4: Requirements and test procedures for aerodynamics on open track [S].

  28. ORELLANO A, SCHOBER M. Aerodynamic performance of a typical high-speed train [J]. WSEAS Transactions on Fluid Mechanics, 2006, 1(5): 379–386.

    Google Scholar 

  29. ZHANG Lei, YANG Ming-zhi, LIANG Xi-feng. Experimental study on the effect of wind angles on pressure distribution of train streamlined zone and train aerodynamic forces [J]. Journal of Wind Engineering and Industrial Aerodynamics, 2018, 174: 330–343. DOI: https://doi.org/10.1016/J.JWEIA.2018.01.024.

    Article  Google Scholar 

  30. BS EN 14067-6. Railway applications—Aerodynamics. Part 6: Requirements, test procedures for crosswind assessment. European Committee for Standardization; Brussels, Belgium [S].

  31. XIA Chao, WANG Han-feng, SHAN Xi-zhuang, et al. Effects of ground configurations on the slipstream and near wake of a high-speed train [J]. Journal of Wind Engineering and Industrial Aerodynamics, 2017, 168: 177–189. DOI: https://doi.org/10.1016/j.jweia.2017.06.005.

    Article  Google Scholar 

  32. LI Tian, QIN Deng, ZHANG Wei-hua, et al. Study on the aerodynamic noise characteristics of high-speed pantographs with different strip spacings [J]. Journal of Wind Engineering and Industrial Aerodynamics, 2020, 202: 104191. DOI: https://doi.org/10.1016/j.jweia.2020.104191.

    Article  Google Scholar 

  33. ZHANG Jie, WANG Fan, HAN Shuai, et al. An investigation on the switching of asymmetric wake flow and the bi-stable flow states of a simplified heavy vehicle [J]. Engineering Applications of Computational Fluid Mechanics, 2022, 16: 2035–2055. DOI: https://doi.org/10.1080/19942060.2022.2130432.

    Article  Google Scholar 

  34. ZHANG Jie, WANG Fan, GUO Zhan-hao, et al. Investigation of the wake flow of a simplified heavy vehicle with different aspect ratios [J]. Physics of Fluids, 2022, 34, 065135. DOI: https://doi.org/10.1063/5.0094534.

    Article  Google Scholar 

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Acknowledgement

The authors would like to thank the computing resources provided by the High-Speed Train Research Center and the High Performance Computing Center of Central South University, China.

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Authors and Affiliations

  1. Key Laboratory of Traffic Safety on Track of Ministry of Education, School of Traffic & Transportation Engineering, Central South University, Changsha, 410075, China

    Jie Zhang  (张洁), Yan-si Ding  (丁艳思), Yi-han Wang  (王懿涵), Shuai Han  (韩帅), Feng-yi Huang  (黄凤仪), Hai Deng  (邓海) & Guang-jun Gao  (高广军)

  2. National & Local Joint Engineering Research Center of Safety Technology for Rail Vehicle, Changsha, 410075, China

    Jie Zhang  (张洁), Yan-si Ding  (丁艳思), Yi-han Wang  (王懿涵), Shuai Han  (韩帅), Feng-yi Huang  (黄凤仪) & Guang-jun Gao  (高广军)

  3. General Research and Development Department, CRRC Changchun Railway Vehicles Co. Ltd., Changchun, 130062, China

    Hai Deng  (邓海)

  4. Department of Civil and Environmental Engineering, the Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China

    Zheng-wei Chen  (陈争卫)

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  1. Jie Zhang  (张洁)
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  2. Yan-si Ding  (丁艳思)
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  6. Hai Deng  (邓海)
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  8. Guang-jun Gao  (高广军)
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Contributions

ZHANG Jie provided the concept. The initial draft of the manuscript was written by DING Yan-si. HAN Shuai and HAUNG Feng-yi conducted the experimental validation. ZHANG Jie and WANG Yi-han edited the draft of the manuscript. DENG Hai, CHEN Zheng-wei and GAO Guang-jun analyzed the collected data. All the authors replied to reviewers’ comments and revised the final version.

Corresponding author

Correspondence to Guang-jun Gao  (高广军).

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Conflict of interest

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Foundation item: Project(2020YFF0304103-03) supported by the National Key Researsh and Development Program of China; Projects (P2019J023, P2020J025) supported by the Science and Technology Research Program of China State Railway Group Co., Ltd.; Project (202045014) supported by the Initial Funding of Specially-Appointed Professorship of Central South University, China; Project(2023ZZTS0424) supported by the Independent Exploration and Innovation Project for Graduate Students of Central South University, China

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Zhang, J., Ding, Ys., Wang, Yh. et al. A novel bionic Coleoptera pantograph deflector for aerodynamic drag reduction of a high-speed train. J. Cent. South Univ. 30, 2064–2080 (2023). https://doi.org/10.1007/s11771-023-5349-x

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  • DOI: https://doi.org/10.1007/s11771-023-5349-x

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