A novel wake flow control method for drag reduction of a high-speed train with vortex generators installing on streamlined tail nose
J Zhang, F Huang, Y Yu, S Han, Y Ding, G Gao - Physics of Fluids, 2023 - pubs.aip.org
The head/tail of a high-speed train has been designed in a streamlined way to achieve good
aerodynamic performance, which leads to the flow separation point moving close to the tail …
aerodynamic performance, which leads to the flow separation point moving close to the tail …
Flow control for aerodynamic drag reduction of a high-speed train with diversion slots on bogie regions
J Zhang, A Adamu, F Gidado, M Tang, O Ozer… - Physics of …, 2023 - pubs.aip.org
A diversion slot is one of the potential mechanical devices to reduce high-speed train
underbody aerodynamic resistance. This research aims to investigate the effectiveness of …
underbody aerodynamic resistance. This research aims to investigate the effectiveness of …
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 …
Drag reduction of a slanted-base cylinder using sweeping jets
In this work, a pair of sweeping jet actuators is installed underneath the endplate of a slanted-
base cylinder at Re D= 200 000. The sweeping jets form a 30 inclined angle with the …
base cylinder at Re D= 200 000. The sweeping jets form a 30 inclined angle with the …
On the unsteady interactions between a sweeping jet and afterbody vortices
In this paper, a sweeping jet was applied to control the afterbody vortices behind a 30
slanted-base cylinder at a Reynolds number of 87 000. Phase-locked stereo particle image …
slanted-base cylinder at a Reynolds number of 87 000. Phase-locked stereo particle image …
Research on the impact of air-blowing on aerodynamic drag reduction and wake characteristics of a high-speed maglev train
The maglev train fills the speed gap between ground transportation and airplanes. However,
the increasing train speed results in greater energy losses due to increased aerodynamic …
the increasing train speed results in greater energy losses due to increased aerodynamic …
Flow characteristics and wind-sheltering performance of wind barriers with different diameters of holes on railway viaducts
Purpose Constructing porous wind barriers is one of the most effective approaches to
increase the running safety of trains on viaducts in crosswinds. This paper aims to further …
increase the running safety of trains on viaducts in crosswinds. This paper aims to further …
[HTML][HTML] Raster angle impact on FDM-based additive manufactured fluidic oscillator
The interior surface of a fluidic oscillator produced by FDM (Fused Deposition Modeling)-
based additive manufacturing is associated with a directional pattern corresponding to the …
based additive manufacturing is associated with a directional pattern corresponding to the …
Effect of upstream flow characteristics on the wake topology of a square-back truck
Z Deng, F Wang, C Zeng, J Zhang, G Gao - Physics of Fluids, 2023 - pubs.aip.org
The influence of upstream flow characteristics on the bi-stable flow structure in the wake
region of a simplified square-back heavy vehicle model at a Reynolds number of 2.7× 10 4 …
region of a simplified square-back heavy vehicle model at a Reynolds number of 2.7× 10 4 …
On the anti-rolling performance of a train using a vortex generator array
Vortex generators (VGs) have shown the potential to mitigate the train's operational
instability issues caused by strong wind. Numerical simulations are used to predict the flow …
instability issues caused by strong wind. Numerical simulations are used to predict the flow …