Wind and Structures

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Vehicle-induced aerodynamic loads on highway sound barriers part 2: numerical and theoretical investigation

  • Wang, Dalei (Department of Bridge Engineering, Tongji University) ;
  • Wang, Benjin (Department of Bridge Engineering, Tongji University) ;
  • Chen, Airong (Department of Bridge Engineering, Tongji University)
  • Received : 2013.05.26
  • Accepted : 2013.07.07
  • Published : 2013.11.25
⟨ Previous Next ⟩

Abstract

The vehicle-induced aerodynamic loads bring vibrations to some of the highway sound barriers, for they are designed in consideration of natural wind loads only. As references to the previous field experiment, the vehicle-induced aerodynamic loads is investigated by numerical and theoretical methodologies. The numerical results are compared to the experimental one and proved to be available. By analyzing the flow field achieved in the numerical simulation, the potential flow is proved to be the main source of both head and wake impact, so the theoretical model is also validated. The results from the two methodologies show that the shorter vehicle length would produce larger negative pressure peak as the head impact and wake impact overlapping with each other, and together with the fast speed, it would lead to a wake without vortex shedding, which makes the potential hypothesis more accurate. It also proves the expectation in vehicle-induced aerodynamic loads on Highway Sound Barriers Part1: Field Experiment, that max/min pressure is proportional to the square of vehicle speed and inverse square of separation distance.

Keywords

References

  1. Baker, C. J. (2001), "Flow and dispersion in ground vehicle wakes", J. Fluid. Struct., 15(7), 1031-1060. https://doi.org/10.1006/jfls.2001.0385
  2. Baker, C. (2010), "The flow around high speed trains", J. Wind Eng. Ind. Aerod., 98(6-7), 277-298. https://doi.org/10.1016/j.jweia.2009.11.002
  3. Barrero-Gil, A. and Sanz-Andres, A. (2009), "Aeroelastic effects in a traffic sign panel induced by a passing vehicle", J. Wind Eng. Ind. Aerod., 97(5-6), 298-303. https://doi.org/10.1016/j.jweia.2009.07.001
  4. Cali, P.M. and Covert, E.E. (2000), "Experimental measurements of the loads induced on an overhead highway sign structure by vehicle-induced gusts", J. Wind Eng. Ind. Aerod., 84(1), 87-100. https://doi.org/10.1016/S0167-6105(99)00045-8
  5. Corin, R.J., He, L. and Dominy, R.G. (2008), "A CFD investigation into the transient aerodynamic forces on overtaking road vehicle models", J. Wind Eng. Ind. Aerod., 96(8-9), 1390-1411. https://doi.org/10.1016/j.jweia.2008.03.006
  6. Fujii, K. and Ogawa, T. (1995), "Aerodynamics of high speed trains passing by each other", Comput. Fluids, 24(8), 897-908. https://doi.org/10.1016/0045-7930(95)00024-7
  7. Gerhardt, H.J. and Kruger, O. (1998), "Wind and train driven air movements in train stations", J. Wind Eng. Ind. Aerod., 74-76, 589-597. https://doi.org/10.1016/S0167-6105(98)00053-1
  8. Hemida, H. and Baker, C. (2010), "Large-eddy simulation of the flow around a freight wagon subjected to a crosswind", Comput. Fluids, 39(10), 1944-1956. https://doi.org/10.1016/j.compfluid.2010.06.026
  9. Holmes, J.D. (2001), "Wind loading of parallel free-standing walls on bridges, cliffs, embankments and ridges", J. Wind Eng. Ind. Aerod., 89(14-15), 1397-1407. https://doi.org/10.1016/S0167-6105(01)00142-8
  10. Letchford, C.W. and Holmes, J.D. (1994), "Wind loads on free-standing walls in turbulent boundary layers", J. Wind Eng. Ind. Aerod., 51(1), 1-27. https://doi.org/10.1016/0167-6105(94)90074-4
  11. Letchford, C.W. and Robertson, A.P. (1999), "Mean wind loading at the leading ends of free standing walls", J. Wind Eng. Ind. Aerod., 79(1-2), 123-134. https://doi.org/10.1016/S0167-6105(97)00292-4
  12. Ministry of Communications of PRC. (2004), Specifications on wind resistance design of highway bridges (JTG/T D60-01-2004), Beijing, China(in Chinese).
  13. Ogawa, T. and Fujii, K. (1997), "Numerical investigation of three-dimensional compressible flows induced by a train moving into a tunnel", Comput. Fluids, 26(6), 565-585. https://doi.org/10.1016/S0045-7930(97)00008-X
  14. Quinn, A.D., Baker, C.J. and Wright, N.G. (2001), "Wind and vehicle induced forces on flat plates - Part 1: wind induced force", J. Wind Eng. Ind. Aerod., 89(9), 817-829. https://doi.org/10.1016/S0167-6105(01)00070-8
  15. Quinn, A.D., Baker, C.J. and Wright, N.G. (2001), "Wind and vehicle induced forces on flat plates - Part 2: vehicle induced force", J. Wind Eng. Ind. Aerod., 89(9), 831-847. https://doi.org/10.1016/S0167-6105(01)00071-X
  16. Robertson, A.P., Hoxey, R.P. and Richards, P.J. (1995), "Design code, full-scale and numerical data for wind loads on free-standing walls", J. Wind Eng. Ind. Aerod., 57(2-3), 203-214. https://doi.org/10.1016/0167-6105(94)00115-T
  17. Robertson, A.P., Hoxey, R.P., Richards, P.J. and Ferguson, W.A. (1997), "Full-scale measurements and computational predictions of wind loads on free- standing walls", J. Wind Eng. Ind. Aerod., 67-68, 639-646. https://doi.org/10.1016/S0167-6105(96)00106-7
  18. Robertson, A.P., Hoxey, R.P., Short, J.L., Ferguson, W.A. and Blackmore, P.A. (1997), "Wind loads on boundary walls: Full-scale studies", J. Wind Eng. Ind. Aerod., 69-71, 451-459. https://doi.org/10.1016/S0167-6105(97)00176-1
  19. Robertson, A.P., Hoxey, R.P., Short, J.L., Ferguson, W.A. and Osmond, S. (1996), "Full-scale testing to determine the wind loads on free-standing walls", J. Wind Eng. Ind. Aerod., 60, 123-137. https://doi.org/10.1016/0167-6105(96)00028-1
  20. Sanz-Andres, A., Laveron, A., Baker, C. and Quinn, A. (2004), "Vehicle induced loads on pedestrian barriers", J. Wind Eng. Ind. Aerod., 92(5), 413-426. https://doi.org/10.1016/j.jweia.2003.12.004
  21. Sanz-Andres, A. and Santiago-Prowald, J. (2002), "Train-induced pressure on pedestrians", J. Wind Eng. Ind. Aerod., 90(8), 1007-1015. https://doi.org/10.1016/S0167-6105(02)00216-7
  22. Sanz-Andres, A., Santiago-Prowald, J., Baker, C. and Quinn, A. (2003), "Vehicle-induced loads on traffic sign panels", J. Wind Eng. Ind. Aerod., 91(7), 925-942. https://doi.org/10.1016/S0167-6105(03)00035-7
  23. Shin, C. and Park, W. (2003), "Numerical study of flow characteristics of the high speed train entering into a tunnel", Mech. Res. Commun., 30(4), 287-296. https://doi.org/10.1016/S0093-6413(03)00025-9
  24. Waymel, F., Monnoyer, F. and William-Louis, M.J.P. (2006), "Numerical simulation of the unsteady three-dimensional flow in confined domains crossed by moving bodies", Comput. Fluids, 35(5), 525-543. https://doi.org/10.1016/j.compfluid.2004.12.006

Cited by

  1. Aerodynamic performance analysis of trains on slope topography under crosswinds vol.23, pp.9, 2016, https://doi.org/10.1007/s11771-016-3301-z
  2. Full scale experiments on vehicle induced transient loads on roadside plates vol.136, 2015, https://doi.org/10.1016/j.jweia.2014.10.010
  3. Full scale experiments on vehicle induced transient pressure loads on roadside walls 2017, https://doi.org/10.1016/j.jweia.2017.06.012
  4. A novel computer vision-based monitoring methodology for vehicle-induced aerodynamic load on noise barrier pp.15452255, 2018, https://doi.org/10.1002/stc.2271
  5. Integrated Evolutionary Algorithms/Computational Fluid Dynamics for Drag Reduction in Highway Design vol.27, pp.3, 2013, https://doi.org/10.1061/(asce)is.1943-555x.0000625