Aerodynamic simulation of effects of one- and two-side windbreak walls on a moving train running on a double track railway line subjected to strong crosswind
Artikel i vetenskaplig tidskrift, 2022

High-speed railway lines are widely distributed worldwide. The surrounding wind environment of such railway lines is complex, which significantly affects the safety of high-speed train operations. Using a combination of the computational fluid dynamics method of improved delayed detached eddy simulation and sliding grid technology, the effects of one- and two-side windbreak walls on the unsteady aerodynamic performance of a high-speed train running under a crosswind on a double-track railway line with an embankment and the flow-field characteristics around the train were systematically studied. The grid independence and numerical methods used in this study were verified. The results showed that when the windbreak wall was absent, the aerodynamic performance of the train running on the upstream railway line was the poorest, while the train running on the downstream railway line exhibited large aerodynamic fluctuations. The windbreak wall significantly reduced the aerodynamic force and its fluctuation; the one- and two-side windbreak walls had different effects on the unsteady aerodynamic performance of trains running on the upstream and downstream railway lines under a crosswind. The one-side windbreak wall could restrain the aerodynamic fluctuation of the train more and is thus preferred from the perspective of construction effort and cost.

Aerodynamic characteristics


Double track

Moving mesh

High-speed train

One- and two-side windbreak wall


Jiqiang Niu

Jilin University

Southwest Jiaotong University

Yingchao Zhang

Jilin University

Rui Li

University of Birmingham

Lanzhou Jiaotong University

Zheng wei Chen

Hong Kong Polytechnic University

Huadong Yao

Chalmers, Mekanik och maritima vetenskaper, Strömningslära

Yueming Wang

Southwest Jiaotong University

Journal of Wind Engineering and Industrial Aerodynamics

0167-6105 (ISSN)

Vol. 221 104912





Transportteknik och logistik


Strömningsmekanik och akustik


C3SE (Chalmers Centre for Computational Science and Engineering)



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