长大编组高速列车横风气动特性研究
Investigation on Aerodynamic Characteristics of Long-Grouped High Speed Train Subjected to Crosswind
查看参考文献16篇
文摘
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采用定常RANS方法,对长大编组高速列车的横风气动特性进行分析,从流场特性和气动力特性两个方面开展研究。结果表明,横风条件下,列车表面流动现象非常丰富,列车首尾流线型存在较多流动分离、再附等现象,且受横风侧偏角影响较大。在列车背风侧出现两个以上的复杂分离涡系,从列车头车下部开始,向列车下游发展并逐渐远离列车车体。分离涡系是列车承受非定常气动力的根源。列车头车是侧向力、滚转力矩最严峻的车厢,且随着横风侧偏角增大,侧向力、滚转力矩逐渐增大,列车行车环境逐渐恶化。 |
其他语种文摘
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RANS approach is adopted to perform an investigation on aerodynamic characteristics of high speed trains in crosswind conditions. Both the flow structures and aerodynamic loads are analyzed in detail. Results reveal that abundant flow phenomena could be observed on the streamlined head and affected by the yaw angles of the incoming flow. Detached vortices can be found on the leeward side of train, which origin from the bottom of the streamlined head and develop along the train body and gets far away from the train body. The first car of the whole train owns the worst aerodynamic circumstance. As the yaw angle grows, the side force and the overturning moment of the first car gradually grow bigger, and the running circumstance of the train becomes worse. |
来源
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北京大学学报. 自然科学版
,2016,52(6):977-984 【核心库】
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DOI
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10.13209/j.0479-8023.2015.137
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关键词
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横风效应
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长大编组高速列车
;
湍流模式
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侧向力
;
滚转力矩
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地址
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1.
南车青岛四方机车股份有限公司, 青岛, 266111
2.
中国科学院力学研究所, 中国科学院流固耦合系统力学重点实验室, 北京, 100190
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语种
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中文 |
文献类型
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研究性论文 |
ISSN
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0479-8023 |
学科
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铁路运输 |
文献收藏号
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CSCD:5849839
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参考文献 共
16
共1页
|
1.
田红旗.
高速列车空气动力学,2007
|
被引
3
次
|
|
|
|
2.
高广军. 兰新线强横风对车辆倾覆稳定性的影响.
铁道学报,2004,26(4):36-40
|
被引
68
次
|
|
|
|
3.
Coleman S A. High sided road vehicles in crosswind.
Journal of Wind Engineering and Industrial Aerodynamics,1990,36(2):1383-1392
|
被引
31
次
|
|
|
|
4.
Hoppmann U U. A short term strong wind prediction model for railway application: design and verification.
Journal of Wind Engineering and Industrial Aerodynamics,2002,90(10):1127-1134
|
被引
31
次
|
|
|
|
5.
Fujii T. Wind-induced accidents of train/vehicles and their measures in Japan.
Quarterly Report of RTRT,1999,40(1):50-55
|
被引
39
次
|
|
|
|
6.
Baker C J. Train aerodynamic forces from moving model experiments.
Journal of Wind Engineering and Industrial Aerodynamics,1986,24(3):227-252
|
被引
17
次
|
|
|
|
7.
Suzuki M. Aerodynamic characteristics of train/vehicles under crosswind.
Journal of Wind Engineering and Industrial Aerodynamics,2003,91:209-218
|
被引
128
次
|
|
|
|
8.
Sanquer S. Effect of cross winds on high-speed trains: development of a new experimental methodology.
Journal of Wind Engineering and Industrial Aerodynamics,2004,92(7):535-545
|
被引
17
次
|
|
|
|
9.
Khier W. Flow structure around trains under side wind conditions: a numerical study.
Computers and Fluids,2000,29(3):179-195
|
被引
45
次
|
|
|
|
10.
Orellano A. On side-wind stability of high speed trains.
Vehicle System Dynamics Supplement,2003,40(Suppl 1):143-160
|
被引
5
次
|
|
|
|
11.
Hemida H. Numerical study of the unsteady flow structures around train-shaped body subjected to side winds.
European Conference on Computational Fluid Dynamics,2006:1-12
|
被引
1
次
|
|
|
|
12.
郗艳红. 基于分离涡方法的高速列车横风非定常气动特性.
中南大学学报: 自然科学版,2015,46(3):1129-1139
|
被引
12
次
|
|
|
|
13.
刘加利. 基于大涡模拟的高速列车横风运行安全性研究.
铁道学报,2011,33(4):13-21
|
被引
31
次
|
|
|
|
14.
Launder B E. The numerical computation of turbulent flows.
Computer Methods in Applied Mechanics and Engineering,1974,3(2):269-289
|
被引
580
次
|
|
|
|
15.
Wilcox D C. Multiscale model for turbulent flows.
AIAA Journal,1988,26(11):1311-1320
|
被引
13
次
|
|
|
|
16.
Menter F R. Zonal two equation k-ω turbulence models for aerodynamic flows.
23rd Fluid Dynamics, Plasmadynamics, and Lasers Conference: AIAA Paper 93-2906,1993
|
被引
1
次
|
|
|
|
|