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Optimization of the anti-snow performance of a high-speed train based on passive flow control

  • Gao, Guangjun (Key Laboratory of Traffic Safety on Track of Ministry of Education, School of Traffic & Transportation Engineering, Central South University) ;
  • Tian, Zhen (Key Laboratory of Traffic Safety on Track of Ministry of Education, School of Traffic & Transportation Engineering, Central South University) ;
  • Wang, Jiabin (Key Laboratory of Traffic Safety on Track of Ministry of Education, School of Traffic & Transportation Engineering, Central South University) ;
  • Zhang, Yan (Key Laboratory of Traffic Safety on Track of Ministry of Education, School of Traffic & Transportation Engineering, Central South University) ;
  • Su, Xinchao (Key Laboratory of Traffic Safety on Track of Ministry of Education, School of Traffic & Transportation Engineering, Central South University) ;
  • Zhang, Jie (Key Laboratory of Traffic Safety on Track of Ministry of Education, School of Traffic & Transportation Engineering, Central South University)
  • Received : 2019.08.02
  • Accepted : 2019.10.18
  • Published : 2020.04.25

Abstract

In this paper, the improvement of the anti-snow performance of a high-speed train (HST) is studied using the unsteady Reynolds-Averaged Navier-Stokes simulations (URANS) coupled with the Discrete Phase Model (DPM). The influences of the proposed flow control scheme on the velocity distribution of the airflow and snow particles, snow concentration level and accumulated mass in the bogie cavities are analyzed. The results show that the front anti-snow structures can effectively deflect downward the airflow and snow particles at the entrance of the cavities and alleviate the strong impact on the bogie bottom, thereby decrease the local accumulated snow. The rotational rear plates with the deflecting angle of 45° are found to present well deflecting effect on the particles' trajectories and force more snow to flow out of the cavities, and thus significantly reduce the accretion distribution on the bogie top. Furthermore, running speeds of HST are shown to have a great effect on the snow-resistance capability of the flow control scheme. The proposed flow control scheme achieves more snow reduction for HST at higher train's running speed in the cold regions.

References

  1. Bettez, M. (2011), "Winter technologies for high speed rail", Master's Thesis, Norwegian University of Science and Technology, Norway.
  2. Casa, X.D.L., Paradot, N. Allain, E. Pauline, J. Delpech, P. and Bouchet, J.P. (2014), "A numerical modelling of the snow accumulation on a high-speed train", International Conference in Numerical and Experimental Aerodynamics of Road Vehicles and Trains, Bordeaux, France, June.
  3. CEN European Standard (2013), "Railway applications- aerodynamics. part 4: requirements and test procedures for aerodynamics on open track", Research Report No. CEN EN 14067-4.
  4. Chen, G., Li, X.B. Liu, Z. Zhou, D. Wang, Zhe. Liang, X.F. and Krajnovic, S. (2019), "Dynamic analysis of the effect of nose length on train aerodynamic performance", J. Wind Eng. Indus. Aerod., 184, 198-208. https://doi.org/10.1016/j.jweia.2018.11.021. https://doi.org/10.1016/j.jweia.2018.11.021
  5. Ding, S.S., Tian, A.Q. Dong, T.Y. Zhou, W. and Li, J.J. (2016), "Influence of inclined guiding plate on anti-snow performance of high-speed train bogie", J. Central South Univ., 4, 1400-1406.
  6. Fluent Inc. (2011), Fluent User's Guide.
  7. Fujii, T., Kawashima, K. Iikura, S. Endo, T. and Izunami, R. (2002), "Preventive measures against snow for high-speed train operation in Japan", 11th International Conference on Cold Regions Engineering, Alaska, U.S.A., May.
  8. Gao, G. J., Li, F. He, K. Wang, J.B. Zhang, J. and Miao, X.J. (2019), "Investigation of bogie positions on the aerodynamic drag and near wake structure of a high-speed train", J. Wind Eng. Indus. Aerod., 185, 41-53. https://doi.org/10.1016/j.jweia.2018.10.012. https://doi.org/10.1016/j.jweia.2018.10.012
  9. Gao, G.J., Zhang, Y. Xie, F. Zhang, J. He, K. Wang, J.B. and Zhang, Y.N. (2018a), "Numerical study on the anti-snow performance of deflectors in the bogie region of a high-speed train using the discrete phase model", Proceedings of the Institution of Mechanical Engineers Part F Journal of Rail & Rapid Transit, 233(2), 141-159.
  10. Gao, G.J., Zhang, Y.N. Zhang, J. Xie, F. Zhang, Y. and Wang, J.B. (2018b), "Effect of bogie fairings on the snow reduction of a high-speed train bogie under crosswinds using a discrete phase method", Wind Struct., 27(4), 255-267. https://doi.org/10.12989/was.2018.27.4.255. https://doi.org/10.12989/was.2018.27.4.255
  11. Giappino, S., Rocchi, D. and Schito, P. (2016), "Cross wind and rollover risk on lightweight railway vehicles", J. Wind Eng. Indus. Aerod., 153, 106-112. https://doi.org/10.1016/j.jweia.2016.03.013. https://doi.org/10.1016/j.jweia.2016.03.013
  12. Guo, Z.J., Liu, T.H. Chen, Z.W. Xie, T.Z. and Jiang, Z.H. (2018), "Comparative numerical analysis of the slipstream caused by single and double unit trains", J. Wind Eng. Ind. Aerod., 172, 395-408. https://doi.org/10.1016/j.jweia.2017.11.022. https://doi.org/10.1016/j.jweia.2017.11.022
  13. Kosinski, P. and Hoffmann, A.C. (2007), "An eulerian-lagrangian model for dense particle clouds", Comput. Fluids, 36(4), 714-723. https://doi.org/10.1016/j.compfluid.2006.06.003. https://doi.org/10.1016/j.compfluid.2006.06.003
  14. Li, X.B., Chen, G. Wang, Z. Xiong, X.H. Liang, X.F. and Yin, J. (2019), "Dynamic analysis of the flow fields around single-and double-unit trains", J. Wind Eng. Ind.. Aerod., 188, 136-150. https://doi.org/10.1016/j.jweia.2019.02.015. https://doi.org/10.1016/j.jweia.2019.02.015
  15. Miao, X.J. and He, K. (2018), "Cause analysis of snow packing in high-speed train's bogie regions and anti-snow packing design", J. Central South Univ., 3, 756-763.
  16. Niu, J. Q., Wang, Y. M. Zhang, L. Yuan, Y. P. (2018), "Numerical analysis of aerodynamic characteristics of high-speed train with different train nose lengths", Heat Mass Transfer, 127, 188-199. https://doi.org/10.1016/j.ijheatmasstransfer.2018.08.041. https://doi.org/10.1016/j.ijheatmasstransfer.2018.08.041
  17. Niu, J.Q., Zhou, D. and Liang, X.F. (2017), "Numerical simulation of the effects of obstacle deflectors on the aerodynamic performance of stationary high-speed trains at two yaw angles", Proc. Inst. Mech. Eng. Part F. J. Rail Rapid Transp, 232(3): 913-927. https://doi.org/10.1177%2F0954409717701786.
  18. Paulukuhn, L. and Wu, X. (2012), "The low temperatures technology concepts and operational experience in Russian high speed train velaro RUS", Foreign Rolling Stock, 49(3), 16-19.
  19. Wang, J., Minelli, G. Dong, T. Chen, G. and Krajnovic, S. (2019a). "The effect of bogie fairings on the slipstream and wake flow of a high-speed train. An IDDES study", J. Wind Eng. Ind. Aerod., 191, 183-202. https://doi.org/10.1016/j.jweia.2019.06.010. https://doi.org/10.1016/j.jweia.2019.06.010
  20. Wang, J.B., Gao, G.J. Liu, M.Y. Xie, F. and Zhang, J. (2018a), "Numerical study of snow accumulation on the bogies of a high-speed train using URANS coupled with discrete phase model", J. Wind Eng. Ind. Aerod., 183, 295-314. https://doi.org/10.1016/j.jweia.2018.11.003. https://doi.org/10.1016/j.jweia.2018.11.003
  21. Wang, J.B., Gao, G.J. Zhang, Y. and Xie, F. (2017), "Numerical simulation of snow accumulation on a bogie of a high-speed train", DEStech Transac. Eng. Technol. Res. 771-778. 10.12783/dtetr/icia2017/15701.
  22. Wang, J.B., Gao, G.J. Zhang, Y. He, K. and Zhang, J. (2019), "Anti-snow performance of snow shields designed for brake calipers of a high-speed train", Proceedings of the Institution of Mechanical Engineers Part F Journal of Rail & Rapid Transit, 233(2), 121-140. https://doi.org/10.1177/0954409718783327
  23. Wang, J.B., Zhang, J. Xie, F. Zhang, Y. and Gao, G.J. (2018c), "A study of snow accumulating on the bogie and the effects of deflectors on the de-icing performance in the bogie region of a high-speed train", Cold Regions Sci. Technol., 148, 121-130. https://doi.org/10.1016/j.coldregions.2018.01.010. https://doi.org/10.1016/j.coldregions.2018.01.010
  24. Wang, J.B., Zhang, J. Zhang, Y. Liang, X.F. Krajnovic, S. and Gao, G.J. (2019b), "Impact of rotation of wheels and bogie cavity shapes on snow accumulating on the bogies of high-speed trains", Cold Regions Sci. Technol., 159, 58-70. https://doi.org/10.1016/j.coldregions.2018.12.003. https://doi.org/10.1016/j.coldregions.2018.12.003
  25. Wang, J.B., Zhang, J. Zhang, Y. Xie, F. Krajnovic, S. and Gao, G.J. (2018d), "Impact of bogie cavity shapes and operational environment on snow accumulating on the bogies of high-speed trains", J. Wind Eng. Indus. Aerod., 176, 211- 224. https://doi.org/10.1016/j.jweia.2018.03.027. https://doi.org/10.1016/j.jweia.2018.03.027
  26. Xie, F., Zhang, J. Gao, G.J. He, K. Zhang, Y. Wang, J.B. and Zhang, Y. (2017), "Study of snow accumulation on a high-speed train's bogies based on the Discrete Phase Model", J. Appl. Fluid Mech. 10, 1729-1745. http://10.29252/jafm.73.245.27410. https://doi.org/10.29252/jafm.73.245.27410
  27. Xie, T.Z., Liu, T.H. Chen, Z.W. Chen, X.D. and Li, W.H. (2018), "Numerical study on the slipstream and trackside pressure induced by trains with different longitudinal section lines", Proc. Inst. Mech. Eng. Part F. J. Rail Rapid Transp, 232(6): 1671-1685. https://doi.org/10.1177%2F0954409717744976. https://doi.org/10.1177/0954409717744976
  28. Zhang, J., Wang, J.B. Wang, Q.X. Xiong, X.H. and Gao, G.J. (2018), "A study of the influence of bogie cut outs' angles on the aerodynamic performance of a high-speed train" J. Wind Eng. Ind., Aerod., 175, 153-168. https://doi.org/10.1016/j.jweia.2018.01.041. https://doi.org/10.1016/j.jweia.2018.01.041