Aerodynamic performance analysis of trains on slope topography under crosswinds
Aerodynamic performance analysis of trains on slope topography under crosswinds
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侧风下斜坡地形列车气动性能分析
DOI：
10.1007/s11771-016-3301-z
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发表时间：
2016-09
影响因子：
4.4
通讯作者：
Zhou Xi-sai
中科院分区：
文献类型：
--
作者：
Liu Tang-hong;Su Xin-chao;Zhang Jie;Chen Zheng-wei;Zhou Xi-sai
采用计算流体力学方法结合实车试验，对列车在特殊斜坡地形上的气动性能进行了分析。结果表明，随着坡度的增大，气动力和弯矩急剧增大。与平地条件相比，在20°坡度条件下，列车在第一条线路上的横向力、升力和倾覆力矩分别增加了153.2%、53.4%和124.7%。但随着迎风面深度的增加，防风效果明显提高。当埋深等于10 m时，与0 m相比，列车在一线的横向力、升力和倾覆力矩分别减小70.9%、77.0%和70.6%。通过分析坡度参数对列车气动性能的影响，建立了坡度参数与列车气动性能之间的关系。为提高列车在不同坡度条件下的空气动力学性能提供了基本的参考依据，为列车在不同风环境下的安全运行提供了合理的运行速度。
This work used the computational fluid dynamics method combined with full-scale train tests to analyze the train aerodynamic performance on special slope topography. Results show that with the increment in the slope gradient, the aerodynamic forces and moment increase sharply. Compared with the flat ground condition, the lateral force, lift force, and overturning moment of the train on the first line increase by 153.2%, 53.4% and 124.7%, respectively, under the slope gradient of 20°. However, with the increment of the windward side’s depth, the windbreak effect is improved obviously. When the depth is equal to 10 m, compared with the 0 m, the lateral force, lift force and overturning moment of the train on the first line decrease by 70.9%, 77.0% and 70.6%, respectively. Through analyzing the influence of slope parameters on the aerodynamic performance of the train, the relationships among them are established. All these will provide a basic reference for enhancing train aerodynamic performances under different slope conditions and achieve reasonable train speeds for the operation safety in different wind environments.
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DOI：
10.1243/0954409jrrt126
发表时间：
2007-03
期刊：
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit
影响因子：
--
作者：
B. Diedrichs;M. Sima;A. Orellano;H. Tengstrand
通讯作者：
B. Diedrichs;M. Sima;A. Orellano;H. Tengstrand
高速公路声屏障上车辆引起的空气动力载荷第 2 部分：数值和理论研究
影响因子：
1.6
作者：
Wang, Dalei;Wang, Benjin;Chen, Airong
通讯作者：
Chen, Airong
影响因子：
1.6
作者：
Tian Zhang;H. Xia;W. Guo
通讯作者：
Tian Zhang;H. Xia;W. Guo
DOI：
--
发表时间：
2006
期刊：
--
影响因子：
--
作者：
Liu Feng-hua
通讯作者：
Liu Feng-hua
将侧风力集成到列车动态建模中
DOI：
10.1177/2041301710392476
发表时间：
2011
期刊：
Journal of Rail and Rapid Transit
影响因子：
--
作者：
Baker C
通讯作者：
Baker C