Investigating the Mutual Feedback between Wind–Sand Fields and a Running Train on the Bridge–Road Transition Section of a Railway

Peng Wang, Ning Huang (), Yanlu Qi, Wenhao Luo and Guowei Xin
Additional contact information
Peng Wang: School of Mechanical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
Ning Huang: Key Laboratory of Ministry for Education on Western Disaster and Environment, Lanzhou University, Lanzhou 730000, China
Yanlu Qi: Xinjiang Railway Survey and Design Institute Co., Ltd., Urumqi 830011, China
Wenhao Luo: CRRC Zhuzhou Locomotive Co., Ltd., Zhuzhou 412001, China
Guowei Xin: School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China

Sustainability, 2023, vol. 15, issue 19, 1-17

Abstract: Strong wind–sand flow exerts great potential safety hazards for high-speed train operations. In this paper, we investigate the aerodynamic characteristics of high-speed trains passing through the bridge–road transition section under a wind-blown sand environment. In particular, we adopt the sliding grid method to simulate the changes in aerodynamic pressure on the train surface when the train passes the bridge transition at different speeds and bridge heights. The variation in the aerodynamic lateral force borne by the vehicle body at various times is then obtained. The results reveal that in the wind–sand environment, when a train drives from the bridge to the embankment, the pressure values on both the windward and leeward sides of the train change abruptly, with the most obvious increase in the lateral force of the head car. Moreover, the abrupt change in pressure increases with the speed of the lateral wind–sand flow. The differential pressure force of the train on the embankment is larger where the differential pressure force on both sides of the head train is the largest. When the train is running in the opposite direction, the differential pressure force on both sides of the train decreases. Compared with the lateral wind condition, the lateral force at different positions of the train under the wind–sand condition exceeds that under the non-sand condition. The average increases in the train body are approximately 17.6% (10 m/s), 10.5% (20 m/s) and 9.5% (30 m/s), which will cause passengers to experience an obvious “shaking” phenomenon.

Keywords: wind–sand flow; high-speed train; bridge–road transition section; numerical simulation (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/15/19/14210/pdf (application/pdf)
https://www.mdpi.com/2071-1050/15/19/14210/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:15:y:2023:i:19:p:14210-:d:1247843

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().