Turbulence approaches for numerical predictions of vehicle-like afterbody vortex flows
The numerical prediction of aerodynamic characteristics for vehicles is crucial to both
industry and academia, with various numerical approaches playing a critical role in …
industry and academia, with various numerical approaches playing a critical role in …
Turbulence correlation between moving trains and anemometer towers: Theoretical analysis, field measurements and simulation
A precise command of railway operations according to the measured instantaneous wind
speed on an anemometer tower along a railway line is the development trend, whose …
speed on an anemometer tower along a railway line is the development trend, whose …
Mitigation of crosswind effects on high-speed trains using vortex generators
Vortex generators can enhance the operational safety of high-speed trains and offer
effective anti-rolling performance. This paper investigates the influence of vortex generator …
effective anti-rolling performance. This paper investigates the influence of vortex generator …
Flow characteristics induced by a multiform windbreak in complex terrains with and without a train: A simplified method for calculating aerodynamic loads
This study aims to investigate common multiform windbreaks, aligned parallel to railway
tracks and perpendicular to incoming wind, in complex terrains. Using unsteady simulations …
tracks and perpendicular to incoming wind, in complex terrains. Using unsteady simulations …
Improved delayed detached-eddy simulation on aerodynamic characteristics of biomimetic Coleoptera pantograph deflectors installed on a high-speed train
J Gai, Y Yu, Y Wang, Y Ding, J Zhang - Physics of Fluids, 2024 - pubs.aip.org
With continuous increase in the train speed, the aerodynamic drag forces of high-speed
trains increase sharply in a square relationship. As an important source of train aerodynamic …
trains increase sharply in a square relationship. As an important source of train aerodynamic …
Vibration suppression and surface quality enhancement in milling thin-walled structures using shear thickening fluids
The milling process of thin-walled structures will often face challenges such as increased
vibrations and poor surface finishing due to reduced stiffness and damping properties of the …
vibrations and poor surface finishing due to reduced stiffness and damping properties of the …
Aerodynamics effects of rear-mounted porous plate in cylindrical flow at different Reynold numbers
This paper conducts simulations to analyze the flow control characteristics of cylindrical flow
over porous plates in the subcritical regime, utilising large-eddy simulation (LES) coupled …
over porous plates in the subcritical regime, utilising large-eddy simulation (LES) coupled …
Wind tunnel experimental investigation on aerodynamic noise characteristics of full-scale pantographs with single or double contact strips
K Jin, Y Ma, S Huang, R Jia, L Zhang, F Mou… - … Thermal and Fluid …, 2024 - Elsevier
As the train speed continuous increase, the noise caused by high-speed trains has long
troubled residents along the railway. The pantograph protrudes from the surface of the train …
troubled residents along the railway. The pantograph protrudes from the surface of the train …
Compressible effects of a supersonic evacuated tube maglev train at various Mach numbers
ZD Huang, C Peng, ZW Chen, ZJ Guo, N Chang… - Physics of …, 2024 - pubs.aip.org
Evacuated tube maglev train (ETMT) system aims to advance ultra-high-speed
transportation, featuring unique high-speed flow phenomena and complex shockwave …
transportation, featuring unique high-speed flow phenomena and complex shockwave …
Uncertainty quantification of the standard k-ε turbulence model closure coefficients in predicting aerodynamics of high-speed train
H Liu, Z Kong, G Li, C Chen, Y Zhao… - … of Computational Fluid …, 2024 - Taylor & Francis
Turbulence modelling is crucial in predicting train aerodynamics while its performance is
closely related to the model closure coefficients. To reveal the influence, uncertainty …
closely related to the model closure coefficients. To reveal the influence, uncertainty …