Zhou Dan, Tian Hong-qi, Lu Zhai-jun. Influence of strong crosswind on aerodynamic performance of passenger train running on embankment[J]. Journal of Traffic and Transportation Engineering, 2007, 7(4): 6-9.
Citation: Zhou Dan, Tian Hong-qi, Lu Zhai-jun. Influence of strong crosswind on aerodynamic performance of passenger train running on embankment[J]. Journal of Traffic and Transportation Engineering, 2007, 7(4): 6-9.

Influence of strong crosswind on aerodynamic performance of passenger train running on embankment

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  • Author Bio:

    Zhou Dan(1980-), female, doctoral student of engineering, +86-731-2655294, qlzjzd@mail.csu.edu.cn

    Tian Hong-qi(1959-), female, EngD, professor, +86-731-2655390, thq@mail.csu.edu.cn

  • Received Date: 2007-02-17
  • Publish Date: 2007-08-25
  • In order to improve the running stability of passenger train in strong crosswind, its running condition on embankment while suffering from strong crosswind was simulated by using 3-D unsteady N-S equations and dynamic mesh technique, the relationships between aerodynamic force and train speed, crosswind speed and embankment tallness, and simulation result was compared with tunnel test result. It is found that their results are accordant, aerodynamic side force increases large with the increase of embankment height when embankment height is less than 20.00 m, but it decreases with the increase of embankment height when embankment height is larger than 20.00 m; aerodynamic force and overturning moment rapidly increase with the speed increase of crosswind when the running speed of passenger train is certain; in the condition that the speed of crosswind is certain, aerodynamic force, lift force and overturning moment increase less when train speed change from 60 km·h-1 to 120 km·h-1.

     

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