4 papers
Effects of Thom disk on alleviating ground effects of a wall-mounted rotating cylinder
Bao-Yuan Zhao, Kai Zhang, Dai Zhou +2
This study investigates the effects of Thom disks on alleviating ground effects by wall-mounted rotating cylinders, also known as Flettner rotors, which utilize wind energy for shi…
Aerodynamic performance enhancement and noise reduction for Darrieus vertical axis wind turbines: V-shaped blades and trailing-edge serrations
Jie Su, Yu Tu, Limin Kuang +5
The Darrieus vertical axis wind turbines (VAWTs) are one of the mainstream devices for wind energy utilization in the urban areas. The market's pursuit of high wind energy conversi…
Reynolds number effects on the bistable flows over a wavy circular cylinder
Kai Zhang, Hongbo Zhu, Yong Cao +1
The wake of wavy cylinder has been shown to exhibit bistability. Depending on the initial condition, the final state of the wake can either develop into a steady flow (state I), or…
End boundary effects on wakes dynamics of inclined circular cylinders
Kai Zhang, Yan Bao, Dai Zhou +1
We perform direct numerical simulations to characterize the three-dimensional wake dynamics of long inclined circular cylinders with inhomogeneous end boundary conditions. Three Re…