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Crosswind effects on high-sided road vehicles with and without movement

  • Wang, Bin (Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University) ;
  • Xu, You-Lin (Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University) ;
  • Zhu, Le-Dong (State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University) ;
  • Li, Yong-Le (Department of Bridge Engineering, Southwest Jiaotong University)
  • 투고 : 2012.11.24
  • 심사 : 2013.10.26
  • 발행 : 2014.02.25

초록

The safety of road vehicles on the ground in crosswind has been investigated for many years. One of the most important fundamentals in the safety analysis is aerodynamic characteristics of a vehicle in crosswind. The most common way to study the aerodynamic characteristics of a vehicle in crosswind is wind tunnel tests to measure the aerodynamic coefficients and/or pressure coefficients of the vehicle. Due to the complexity of wind tunnel test equipment and procedure, the features of flow field around the vehicle are seldom explored in a wind tunnel, particularly for the vehicle moving on the ground. As a complementary to wind tunnel tests, the numerical method using computational fluid dynamics (CFD) can be employed as an effective tool to explore the aerodynamic characteristics of as well as flow features around the vehicle. This study explores crosswind effects on a high-sided lorry on the ground with and without movement through CFD simulations together with wind tunnel tests. Firstly, the aerodynamic forces on a stationary lorry model are measured in a wind tunnel, and the results are compared with the previous measurement results. The CFD with unsteady RANS method is then employed to simulate wind flow around and wind pressures on the stationary lorry. The numerical aerodynamic forces are compared with the wind tunnel test results. Furthermore, the same CFD method is extended to investigate the moving vehicle on the ground in crosswind. The results show that the CFD results match with wind tunnel test results and the current way using aerodynamic coefficients from a stationary vehicle in crosswind is acceptable. The CFD simulation can provide more insights on flow field and pressure distribution which are difficult to be obtained by wind tunnel tests.

키워드

참고문헌

  1. Baker, C.J. (1986), "A simplified analysis of various types of wind-induced road vehicle accidents", J. Wind Eng. Ind. Aerod., 22, 69-85. https://doi.org/10.1016/0167-6105(86)90012-7
  2. Baker, C.J. (1988), "High sided articulated road vehicles in strong cross wind", J. Wind Eng. Ind. Aerod., 31, 67-85. https://doi.org/10.1016/0167-6105(88)90188-2
  3. Baker, C.J. and Reynolds, S. (1992), "Wind-induced accidents of road vehicles", Accident Anal. Prev., 24(6), 559-575. https://doi.org/10.1016/0001-4575(92)90009-8
  4. Coleman, S.A. and Baker, C.J. (1990), "High sided road vehicles in cross winds", J. Wind Eng. Ind. Aerod., 36, 1383-1392. https://doi.org/10.1016/0167-6105(90)90134-X
  5. Coleman, S.A. and Baker, C.J. (1992), 'The reduction of accident risk for high sided road vehicles in cross winds', J. Wind Eng. Ind. Aerod., 44(1-3), 2685-2695. https://doi.org/10.1016/0167-6105(92)90060-N
  6. Coleman, S.A. and Baker, C.J. (1994), "An experimental study of the aerodynamic behaviour of high sided lorries in cross winds", J. Wind Eng. Ind. Aerod., 53(3), 401-429. https://doi.org/10.1016/0167-6105(94)90093-0
  7. Gohlke, M. Beaudoin, J. Amielh, M. and Anselmet, F. (2010), "Shape influence on mean forces applied on a ground vehicle under steady cross-wind", J. Wind Eng. Ind. Aerod., 98(8-9), 386-391. https://doi.org/10.1016/j.jweia.2009.12.003
  8. Guilmineau, E. and Chometon, F. (2009), "Effect of side wind on a simplified car model: experimental and numerical Analysis", J. Fluid. Eng. - T ASME, 131(2), 021104. https://doi.org/10.1115/1.3063648
  9. Han, T. (1989), "Computational analysis of three-dimensional turbulent flow around a bluff body in ground proximity", AIAA J., 27(9), 1213-1219. https://doi.org/10.2514/3.10248
  10. Hargreaves, D.M. and Morvan, H.P. (2008), "Initial validation of cross wind effects on a static high-sided vehicle", Int. J. CFD Case Studies, 7, 17-31.
  11. Howell, J.P. (1996), "The side load distribution on a rover 800 saloon car under crosswind conditions", J. Wind Eng. Ind. Aerod., 60, 139-153. https://doi.org/10.1016/0167-6105(96)00029-3
  12. Humphreys, N.D. and Baker, C.J. (1992), "Forces on vehicles in cross winds from moving model tests", J. Wind Eng. Ind. Aerod., 41-44, 2673-2684.
  13. Krajnovic, S. and Davidson, L. (2003), "Numerical study of the flow around a bus-shaped body", J. Fluids Eng. - T ASME, 125, 500-509. https://doi.org/10.1115/1.1567305
  14. Kim, D.H. Kwon, S.D. Lee, I.K. and Jo, B.W. (2011), "Design criteria of wind barriers for traffic. Part2: decision making process", Wind Struct., 14(1), 71-80. https://doi.org/10.12989/was.2011.14.1.071
  15. Kwon, S.D. Kim, D.H. Lee, S.H. and Song H.S. (2011), "Design criteria of wind barriers for traffic. Part1: wind barrier performance", Wind Struct., 14(1), 55-70. https://doi.org/10.12989/was.2011.14.1.055
  16. Passmore, M.A. Richardson, S. and Imam, A. (2001), "An experimental study of unsteady vehicle aerodynamics", Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering.
  17. Petzall, J. Torlund, P.A. Falkmer, T. Albertsson, P. and Bjornstig, U. (2008), "Aerodynamic design of high-sided coaches to reduce cross-wind sensitivity, based on wind tunnel tests", Int. J. Crashworthiness, 13(2), 185-194. https://doi.org/10.1080/13588260701788476
  18. Proppe, C. and Wetzel, C. (2010), "A probabilistic approach for assessing the crosswind stability of ground vehicles", Vehicle Syst. Dyn., 48S, 411-428.
  19. Sharma, R. Chadwich, D. and Haines, J. (2008), "Aerodynamics of an intercity bus", Wind Struct., 11(4), 257-273. https://doi.org/10.12989/was.2008.11.4.257
  20. Snaebjornsson, J.Th. Baker, C.J. and Sigbjornsson, R. (2007), "Probabilistic assessment of road vehicle safety in windy environments", J. Wind Eng. Ind. Aerod., 95, 1445-1462. https://doi.org/10.1016/j.jweia.2007.02.020
  21. Tsubokura, M. Kobayashi, T. Nakashima, T. Nouzawa, T. Nakamura, T. Zhang, H. Onishi, K. and Oshima, N. (2009), "Computational visualization of unsteady flow around vehicles using high performance computing", Comput. Fluids, 38(5), 981-990. https://doi.org/10.1016/j.compfluid.2008.01.020
  22. Xu, Y.L. and Guo, W.H. (2003), "Dynamic behaviour of high-sided road vehicles subject to a sudden crosswind gust", Wind Struct., 6(5), 325-346. https://doi.org/10.12989/was.2003.6.5.325
  23. Zhu, L.D. Li, L. Xu, Y.L. and Zhu, Q. (2012), "Wind tunnel investigations of aerodynamic coefficients of road vehicles on bridge deck", J. Fluid Struct., 30, 35-50. https://doi.org/10.1016/j.jfluidstructs.2011.09.002

피인용 문헌

  1. Nonlinear Safety Analysis of a Running Road Vehicle under a Sudden Crosswind vol.142, pp.2, 2016, https://doi.org/10.1061/(ASCE)TE.1943-5436.0000813
  2. Comparison between steady and moving railway vehicles subjected to crosswind by CFD analysis vol.156, 2016, https://doi.org/10.1016/j.jweia.2016.07.006
  3. Dynamic analysis of coupled wind-train-bridge system considering tower shielding and triangular wind barriers vol.21, pp.3, 2015, https://doi.org/10.12989/was.2015.21.3.311
  4. Effect on measurements of anemometers due to a passing high-speed train vol.20, pp.4, 2015, https://doi.org/10.12989/was.2015.20.4.549
  5. The Aerodynamic Characteristics of Road Vehicles Overtaking on Bridge Deck under Crosswinds vol.2020, pp.None, 2020, https://doi.org/10.1155/2020/8847219
  6. Overturning assessment of railway vehicles under cross winds vol.33, pp.1, 2014, https://doi.org/10.12989/was.2021.33.1.001