陶泽平, 杨志刚, 陈羽. 侧风风场特征对高速列车交会的影响研究[J]. 力学与实践, 2013, 35(2): 22-28. DOI: 10.6052/1000-0879-12-403
引用本文: 陶泽平, 杨志刚, 陈羽. 侧风风场特征对高速列车交会的影响研究[J]. 力学与实践, 2013, 35(2): 22-28. DOI: 10.6052/1000-0879-12-403
TAO Zeping, YANG Zhigang, CHEN Yu. THE INFLUENCE OF CROSSWIND FIELD CHARACTERISTICS ON OPERATING PERFORMANCE OF HIGH SPEED TRAINS IN PASSING EACH OTHER[J]. MECHANICS IN ENGINEERING, 2013, 35(2): 22-28. DOI: 10.6052/1000-0879-12-403
Citation: TAO Zeping, YANG Zhigang, CHEN Yu. THE INFLUENCE OF CROSSWIND FIELD CHARACTERISTICS ON OPERATING PERFORMANCE OF HIGH SPEED TRAINS IN PASSING EACH OTHER[J]. MECHANICS IN ENGINEERING, 2013, 35(2): 22-28. DOI: 10.6052/1000-0879-12-403

侧风风场特征对高速列车交会的影响研究

THE INFLUENCE OF CROSSWIND FIELD CHARACTERISTICS ON OPERATING PERFORMANCE OF HIGH SPEED TRAINS IN PASSING EACH OTHER

  • 摘要: 为了准确预测侧风环境下列车交会时的气动性能,考虑均匀风和大气底层速度边界型侧风,通过计算流体力学方法对比研究高速列车交会压力波特性和气动力特性. 结果表明,两种风场下交会压力波有所不同,但幅值差异不明显;采用均匀风场评估列车侧风环境下交会会高估列车所受气动力. 本文对高速列车行驶安全性评估和复杂运行场景的复杂流场的认识具有参考价值.

     

    Abstract: In order to accurately assess the aerodynamic performance of high speed trains in passing each other under the crosswinds, this paper studies the effects of the uniform crosswind and the lower atmospheric boundary layer crosswind on the train operating performance by means of the computational fluid dynamics, and analyzes the flow structure, the crossing pressure pulse, and the aerodynamic forces. Numerical results show that the crossing pressure pulses under these two types of crosswinds are different, but their amplitudes show no significant difference. The aerodynamic forces under the uniform wind are greater than the corresponding numerical values under the boundary layer crosswind, which means that using the uniform wind field for the evaluation will overestimate the aerodynamic forces. This paper provides some guidances for the safety evaluation of traveling high speed train and some understanding for the complex flow field in the complex running scene.

     

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