13 citations · 16 across the 7 of their papers we have counts for
7 papers
High-flexibility reconstruction of small-scale motions in wall turbulence using a generalized zero-shot learning
Haokai Wu, Kai Zhang, Dai Zhou +3
This study proposes a novel super-resolution (or SR) framework for generating high-resolution turbulent boundary layer (TBL) flow from low-resolution inputs. The framework combines…
An optimization framework for wind farm layout design using CFD-based Kriging model
Zhenfan Wang, Yu Tu, Kai Zhang +3
Wind farm layout optimization (WFLO) seeks to alleviate the wake loss and maximize wind farm power output efficiency, and is a crucial process in the design of wind energy projects…
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…
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…
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…