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CLC number: O359; TD524

On-line Access: 2011-12-01

Received: 2011-06-23

Revision Accepted: 2011-06-24

Crosschecked: 2011-06-24

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Journal of Zhejiang University SCIENCE A 2011 Vol.12 No.12 P.964-970

http://doi.org/10.1631/jzus.A11GT001


Aerodynamic modeling and stability analysis of a high-speed train under strong rain and crosswind conditions


Author(s):  Xue-ming Shao, Jun Wan, Da-wei Chen, Hong-bing Xiong

Affiliation(s):  Department of Mechanics, Zhejiang University, Hangzhou 310027, China, National Engineering Laboratory for System Integration of High-Speed Train (South), CSR Qingdao Sifang Co., Ltd., Qingdao 266111, China

Corresponding email(s):   hbxiong@zju.edu.cn

Key Words:  High-speed train, Aerodynamic characteristics, Multiphase flow, Rain, Crosswind, Overturning


Xue-ming Shao, Jun Wan, Da-wei Chen, Hong-bing Xiong. Aerodynamic modeling and stability analysis of a high-speed train under strong rain and crosswind conditions[J]. Journal of Zhejiang University Science A, 2011, 12(12): 964-970.

@article{title="Aerodynamic modeling and stability analysis of a high-speed train under strong rain and crosswind conditions",
author="Xue-ming Shao, Jun Wan, Da-wei Chen, Hong-bing Xiong",
journal="Journal of Zhejiang University Science A",
volume="12",
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year="2011",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A11GT001"
}

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%T Aerodynamic modeling and stability analysis of a high-speed train under strong rain and crosswind conditions
%A Xue-ming Shao
%A Jun Wan
%A Da-wei Chen
%A Hong-bing Xiong
%J Journal of Zhejiang University SCIENCE A
%V 12
%N 12
%P 964-970
%@ 1673-565X
%D 2011
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A11GT001

TY - JOUR
T1 - Aerodynamic modeling and stability analysis of a high-speed train under strong rain and crosswind conditions
A1 - Xue-ming Shao
A1 - Jun Wan
A1 - Da-wei Chen
A1 - Hong-bing Xiong
J0 - Journal of Zhejiang University Science A
VL - 12
IS - 12
SP - 964
EP - 970
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Y1 - 2011
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A11GT001


Abstract: 
With the development of rain%29&ck%5B%5D=abstract&ck%5B%5D=keyword'>high-speed train, it is considerably concerned about the aerodynamic characteristics and operation safety issues of the rain%29&ck%5B%5D=abstract&ck%5B%5D=keyword'>high-speed train under extreme weather conditions. The aerodynamic performance of a rain%29&ck%5B%5D=abstract&ck%5B%5D=keyword'>high-speed train under heavy rain and strong crosswind conditions are modeled using the Eulerian two-phase model in this paper. The impact of heavy rainfall on train aerodynamics is investigated, coupling heavy rain and a strong crosswind. Results show that the lift force, side force, and rolling moment of the train increase significantly with wind speed up to 40 m/s under a rainfall rate of 60 mm/h. when considering the rain and wind conditions. The increases of the lift force, side force, and rolling moment may deteriorate the train operating safety and cause the train to overturn. A quasi-static stability analysis based on the moment balance is used to determine the limit safety speed of a train under different rain and wind levels. The results can provide a frame of reference for the train safe operation under strong rain and crosswind conditions.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

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