CLC number: O359; TD524
On-line Access: 2011-12-01
Received: 2011-06-23
Revision Accepted: 2011-06-24
Crosschecked: 2011-06-24
Cited: 2
Clicked: 5919
Hong-bing Xiong, Wen-guang Yu, Da-wei Chen, Xue-ming Shao. Numerical study on the aerodynamic performance and safe running of high-speed trains in sandstorms[J]. Journal of Zhejiang University Science A, 2011, 12(12): 971-978.
@article{title="Numerical study on the aerodynamic performance and safe running of high-speed trains in sandstorms",
author="Hong-bing Xiong, Wen-guang Yu, Da-wei Chen, Xue-ming Shao",
journal="Journal of Zhejiang University Science A",
volume="12",
number="12",
pages="971-978",
year="2011",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A11GT005"
}
%0 Journal Article
%T Numerical study on the aerodynamic performance and safe running of high-speed trains in sandstorms
%A Hong-bing Xiong
%A Wen-guang Yu
%A Da-wei Chen
%A Xue-ming Shao
%J Journal of Zhejiang University SCIENCE A
%V 12
%N 12
%P 971-978
%@ 1673-565X
%D 2011
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A11GT005
TY - JOUR
T1 - Numerical study on the aerodynamic performance and safe running of high-speed trains in sandstorms
A1 - Hong-bing Xiong
A1 - Wen-guang Yu
A1 - Da-wei Chen
A1 - Xue-ming Shao
J0 - Journal of Zhejiang University Science A
VL - 12
IS - 12
SP - 971
EP - 978
%@ 1673-565X
Y1 - 2011
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A11GT005
Abstract: The influence of sandstorms on train aerodynamic performance and safe running was studied in response to the frequent occurrence of sandstorm weather in north China. An eulerian two-phase model in the computational fluid dynamic (CFD) software FLUENT, validated with published data, was used to solve the gas-solid multiphase flow of a sandstorm around a train. The train aerodynamic performance under different sandstorm levels and no sand conditions was then simulated. Results showed that in sandstorm weather, the drag, lift, side forces and overturning moment increase by variable degrees. Based on a numerical analysis of aerodynamic characteristics, an equation of train stability was also derived using the theory of moment balance from the view of dynamics. A recommended speed limit of a train under different sandstorm levels was calculated based on the stability analysis.
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