10 citations · 11 across the 5 of their papers we have counts for
5 papers · 1 filter
Aerodynamic characterization of two tandem wind turbines under yaw misalignment control using actuator line model
Yu Tu, Kai Zhang, Zhaolong Han +2
Yaw control has proven to be promising in alleviating the wake effects that plague the efficiency of wind farms. In this work, the actuator line modeling (ALM) method is adopted to…
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…
Turbulence suppression by streamwise-varying wall rotation in pipe flow
Xu Liu, Hongbo Zhu, Yan Bao +2
Direct numerical simulations (DNSs) of turbulent pipe flow subjected to streamwise-varying wall rotation are performed. This control method is able to achieve drag reduction and ev…
Bistability in the wake of a wavy cylinder
Kai Zhang, Dai Zhou, Hiroshi Katsuchi +3
We investigate the wake dynamics of an optimally designed wavy cylinder that completely suppresses the Kármán vortex shedding. Such a wavy cylinder is forced to oscillate with a si…