Mitigating crosswind effect on high-speed trains by active blowing method: a comparative study

ZW Chen, YQ Ni, YW Wang, SM Wang… - … of Computational Fluid …, 2022 - Taylor & Francis
To reduce the crosswind effect on high-speed trains, in this paper, by using the Improved
Delayed Detached Eddy Simulation (IDDES) method and the SST k− ω turbulence model, a …

Effect of the wind speed on aerodynamic behaviours during the acceleration of a high-speed train under crosswinds

D Zhou, C Xia, L Wu, S Meng - Journal of Wind Engineering and Industrial …, 2023 - Elsevier
A high-speed train that accelerates under crosswinds can potentially encounter dramatic
aerodynamic effects and safety risks. The goal of this study is to reveal the effect of wind …

Full-scale tests of unsteady aerodynamic loads and pressure distribution on fast trains in crosswinds

H Gao, T Liu, H Gu, Z Jiang, X Huo, Y Xia, Z Chen - Measurement, 2021 - Elsevier
Unsteady aerodynamic loads have a significant influence on the running safety of a train in
crosswinds. Full-scale tests were carried out to measure the pressure on a fast streamlined …

Effect of simplifying bogie regions on aerodynamic performance of high-speed train

J Zhang, A Adamu, X Su, Z Guo, G Gao - Journal of Central South …, 2022 - Springer
An investigation of the effect of simplifying bogie regions on the aerodynamic performance of
a high-speed train was carried out by studying four train models, to explore possible ways to …

Impact of vacuum degree on the aerodynamics of a high-speed train capsule running in a tube

Y Sui, J Niu, P Ricco, Y Yuan, Q Yu, X Cao… - International Journal of …, 2021 - Elsevier
Motivated by the growing scientific and engineering interest in evacuated tube railway
transportation systems, in this paper we numerically study the influence of the vacuum …

Study on the aerodynamic noise characteristics of high-speed pantographs with different strip spacings

T Li, D Qin, W Zhang, J Zhang - Journal of Wind Engineering and Industrial …, 2020 - Elsevier
In order to study the effect of the strip spacing on the aerodynamic noise characteristics of
the pantograph of high-speed train, the numerical simulation of the aerodynamic flow …

Aerodynamic performance and dynamic behaviors of a train passing through an elongated hillock region beside a windbreak under crosswinds and corresponding …

Z Chen, T Liu, W Li, Z Guo, Y Xia - Journal of Wind Engineering and …, 2021 - Elsevier
Based on unsteady simulations and decomposed sliding mesh technology, train
aerodynamic and dynamic behaviors near an elongated hillock beside a windbreak under a …

[HTML][HTML] Aerodynamic characteristics of double-connected train groups composed of different kinds of high-speed trains under crosswinds: A comparison study

XS Huo, TH Liu, ZW Chen, WH Li, JQ Niu… - Alexandria Engineering …, 2023 - Elsevier
As train speeds continuously increase, the crosswind stability of high-speed trains (HSTs)
has been a prominent research topic. Benefiting from advances in railway technology, the …

[HTML][HTML] Aerodynamic noise from a high-speed train bogie with complex geometry under a leading car

Y He, D Thompson, Z Hu - Journal of Wind Engineering and Industrial …, 2024 - Elsevier
Among the various aerodynamic noise sources associated with high-speed trains, the bogie
regions, and particularly the leading bogie, contribute most to the overall noise. To control …

Effect of acceleration and deceleration of a capsule train running at transonic speed on the flow and heat transfer in the tube

N Jiqiang, S Yang, Y Qiujun, C Xiaoling… - Aerospace Science and …, 2020 - Elsevier
Acceleration and deceleration are required for train operation, and the flow field around the
train shows strong unsteady characteristics during the acceleration and deceleration …