| 磁悬浮列车通过隧道时空气阻力的计算方法 |
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| 引用本文： | 王兆祺,赵毅山.磁悬浮列车通过隧道时空气阻力的计算方法[J].同济大学学报(自然科学版),2003,31(10):1183-1187. |
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| 作者姓名： | 王兆祺 赵毅山 |
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| 作者单位： | 同济大学,工程力学与技术系,上海,200092 |
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| 摘 要： | 首先从空气动力学基本原理出发 ,推导了按非恒定流计算磁悬浮列车在驶入、通过和驶出隧道 3种不同工况下空气阻力的表达式 .然后运用数值方法求出其数值解 ,并与实测和仿真模拟的结果进行比较 .最后分析了空气阻力与各影响因素之间的关系 ,给出了一些合理的解释和建议
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| 关 键 词： | 隧道 磁悬浮列车 空气阻力 侧向风 非恒定流 |
| 文章编号： | 0253-374X(2003)10-1183-05 |
| 修稿时间： | 2002年11月4日 |
Calculating Method on Aerodynamic Drags of Maglev in Passing Tunnel |
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| WANG Zhao-qi,ZHAO Yi-shan.Calculating Method on Aerodynamic Drags of Maglev in Passing Tunnel[J].Journal of Tongji University(Natural Science),2003,31(10):1183-1187. |
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| Authors: | WANG Zhao-qi ZHAO Yi-shan |
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| Abstract: | Firstly, this paper, on the basis of principles in aerodynamics, presents the equations in calculating aerodynamic drags of Maglev on its entering, passing and leaving a tunnel. Secondly, results of drags are carried out by a certain numerical method and then compared with their counterparts in experiment and numerical simulation. Finally, aerodynamic drags and relevant influence factors are analyzed before some reasonable explanations and instructive suggestions are put forward. |
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| Keywords: | tunnel maglev aerodynamic drag lateral wind unsteady flow |
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