| 具有横风效应的磁浮列车湍流外流场特性数值计算 |
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| 引用本文： | 革非,毕海权,雷波,张卫华.具有横风效应的磁浮列车湍流外流场特性数值计算[J].铁道学报,2005,27(6):117-121. |
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| 作者姓名： | 革非 毕海权 雷波 张卫华 |
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| 作者单位： | 1. 西南交通大学,土木工程学院,四川,成都,610031
2. 西南交通大学,牵引动力国家重点实验室,四川,成都,610031 |
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| 基金项目： | 国家自然科学基金资助（50375127） |
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| 摘 要： | 采用有限容积法对磁浮列车以500 km/h的速度运行、受10~40 m/s的横向自然风作用下的外流场特性进行了详尽的计算分析,得到了列车顶部和侧面不同位置的速度和压力分布特性以及列车的尾流特性。结果表明:列车上部及背风侧面的速度及压力波动均随着自然风速的增加而增大,并且列车尾涡中心也由于受自然风的影响而沿着自然风的方向偏转,而自然风对迎风侧的压力波动影响较小。
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| 关 键 词： | 磁浮列车 外流场特性 横风 数值计算 |
| 文章编号： | 1001-8360（2005）06-0117-05 |
| 收稿时间： | 2005-03-18 |
| 修稿时间： | 2005-08-22 |
Numerical Analysis of Turbulent Flow Around Maglev Train under Cross-wind |
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| GE Fei,BI Hai-quan,LEI Bo,ZHANG Wei-hua.Numerical Analysis of Turbulent Flow Around Maglev Train under Cross-wind[J].Journal of the China railway Society,2005,27(6):117-121. |
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| Authors: | GE Fei BI Hai-quan LEI Bo ZHANG Wei-hua |
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| Institution: | 1. School of Civil Eng. ,Southwest Jiaotong University,Chengdu 610031 ,China; 2. Traction Power State Key Laboratory, Southwest Jiaotong University, Chengdu 610031, China |
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| Abstract: | Turbulent flow over maglev trains under 10~40 m/s cross-wind are investigated using the finite volume method when the speed of the train is 500 km/h.The velocity and pressure distribution above and on the side of vehicles are calculated.Calculation results show that the changes of velocity and pressure above and on the leeward side of vehicles increase along with the accretion of the speed of cross-wind.Also due to the influence of the crosswing centers of the trailing vortexes deflect along with the direction of cross-wind.While cross-wind has little effects on the change of pressure on windward side. |
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| Keywords: | maglev trains turbulent flow over maglev train cross-wind numerical calculation |
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