侧风风场特征对高速列车气动性能作用研究分析.pdfVIP

33 4 V ol1 33 N o1 4 2 0 1 1 4 J OU R NA L OF T H E CH IN A RA ILW A Y SO CI ET Y A pril 20 11 : 1001- 8360 2011) 04-0022- 09 侧风风场特征对高速列车气动性能作用的研究 1 1 2 毛 军 , 郗艳红 , 杨国伟 11 , 100044 ; 21 , 100190) : , , NS , SST k-X , 350 km : , ; , , , , , , : ; ; ; ; : U 266 : A do i: 101 3969/ j1 issn1 1001- 83601 20111 041 004 Research on Influence of Characteristics of Cross Wind Field on Aerodynamic Performanceof a High-speed Train 1 1 2 M A O J un , XI Y an- hong , Y A N G Guo-w ei 11 School of Civil Engin eering , Beijing Jiaot ong U nivers ity , Beijing 100044, Ch ina; 21 Inst it ut e of M echanics, C hinese A cademy of S cien ces , Beijing 100 190, China) Abstract:Characteristics of the cross wind field, such as uniform winds and lower atmospheric boundary layer w inds, have directly inf luence on t he operation safet y of high- speed trains w hich run in the cross wind environment1 In order t o accurately assess the ef fect of cross winds on trains running on plains, on the basis of the three- dimensional st eady com- pressible flow of N S equat ions, using the SST k- X two- equat ion t urbulence model and finite volume met hod, the f low field and aerodynamic charact eristics of t he high speed t rain running at 350 km/ h in t he cross wind f ield of uniform winds