磁悬浮列车通过隧道时空气阻力的计算方法  

Calculating Method on Aerodynamic Drags of Maglev in Passing Tunnel

作　　者：王兆祺[1] 赵毅山[1] 

机构地区：[1]同济大学工程力学与技术系,上海200092

出　　处：《同济大学学报（自然科学版）》2003年第10期1183-1187,共5页Journal of Tongji University:Natural Science

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 。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.

关 键 词：隧道 磁悬浮列车 空气阻力 侧向风 非恒定流 

分 类 号：U237[交通运输工程—道路与铁道工程]