IDDES simulation of the performance and wake dynamics of the wind turbines under different turbulent inflow conditions

G Chen, XB Li, XF Liang - Energy, 2022 - Elsevier
This paper aims at investigating the effect of the inflow turbulence on the aerodynamics and
the wake instabilities of the wind turbine. The improved delayed detached eddy simulation …

Modelling of wake dynamics and instabilities of a floating horizontal-axis wind turbine under surge motion

G Chen, XF Liang, XB Li - Energy, 2022 - Elsevier
The aerodynamic performance and wake dynamics of wind turbines are known to be
affected by platform surge motion. This study utilized an improved delayed detached eddy …

Impact of the bogies and cavities on the aerodynamic behaviour of a high-speed train. An IDDES study

J Wang, G Minelli, T Dong, K He, S Krajnović - Journal of Wind Engineering …, 2020 - Elsevier
This study investigates the effects of bogie cavities and bogies on the aerodynamic
behaviour of a high-speed train (HST) using improved delayed detached eddy simulation …

Numerical simulation of pressure transients caused by high-speed train passage through a railway station

XF Liang, G Chen, XB Li, D Zhou - Building and Environment, 2020 - Elsevier
In this study, an experimental and computational study of the pressure transients of a high-
speed train passing through a station is presented. The experiments were performed using …

Effect of cross passage on aerodynamic characteristics of super-high-speed evacuated tube transportation

X Hu, Z Deng, W Zhang - Journal of Wind Engineering and Industrial …, 2021 - Elsevier
Based on 3-D, unsteady compressible Navier-Stokes equations and SST k-ω two-equation
IDDES turbulence model, the effect of cross passage on aerodynamic characteristics of …

The effect of bogie fairings on the slipstream and wake flow of a high-speed train. An IDDES study

J Wang, G Minelli, T Dong, G Chen… - Journal of Wind …, 2019 - Elsevier
In this study, an improved delayed detached eddy simulation (IDDES) method based on
shear-stress transport k-ω turbulence model has been used to investigate the slipstream and …

Research on spectral estimation parameters for application of spectral proper orthogonal decomposition in train wake flows

XB Li, G Chen, XF Liang, DR Liu, XH Xiong - Physics of Fluids, 2021 - pubs.aip.org
Coherent structures in surrounding flows around ground vehicles play an important role in
characterizing their aerodynamic features. However, due to restrictions of traditional reduced …

Aerodynamic effects of the gap spacing between adjacent vehicles on wind tunnel train models

Y Xia, T Liu, H Gu, Z Guo, Z Chen, W Li… - … of Computational Fluid …, 2020 - Taylor & Francis
A certain gap spacing between adjacent vehicles is usually inevitable in wind tunnel force
tests of high-speed trains under no crosswind, which may affect the wind tunnel test results …

Study on the effect of dimple position on drag reduction of high-speed maglev train

D Zhou, L Wu, C Tan, T Hu - Transportation Safety and …, 2021 - academic.oup.com
Transient numerical simulations were carried out by placing dimples at the top, sides and
bottoms of the tail car streamline area of a high-speed maglev train. The results of an …

Aerodynamic behaviors in supersonic evacuated tube transportation with different train nose lengths

X Hu, Z Deng, J Zhang, W Zhang - International Journal of Heat and Mass …, 2022 - Elsevier
The flow structure and aerodynamic loads in evacuated tube transportation with three nose
lengths (5, 10 and 15 m) at 1500 km/h are investigated by overset mesh technology. The …