A vortex sheet based analytical model of the curled wake behind yawed wind turbines
Motivated by the need for compact descriptions of the evolution of non-classical wakes
behind yawed wind turbines, we develop an analytical model to predict the shape of curled …
behind yawed wind turbines, we develop an analytical model to predict the shape of curled …
Quantification of wake shape modulation and deflection for tilt and yaw misaligned wind turbines
Misaligned wind turbine rotors redirect the wake, and manipulate the wake shape by
introducing a counter-rotating vortex pair. This mechanism is of great interest for improving …
introducing a counter-rotating vortex pair. This mechanism is of great interest for improving …
Effects of wind veer on a yawed wind turbine wake in atmospheric boundary layer flow
Large eddy simulations (LESs) are used to study the effects of veer (the height-dependent
lateral deflection of wind velocity due to Coriolis acceleration) on the evolution of wind …
lateral deflection of wind velocity due to Coriolis acceleration) on the evolution of wind …
Analytical model coupling Ekman and surface layer structure in atmospheric boundary layer flows
We introduce an analytical model that describes the vertical structure of Ekman boundary
layer flows coupled to the Monin-Obukhov Similarity Theory (MOST) surface layer …
layer flows coupled to the Monin-Obukhov Similarity Theory (MOST) surface layer …
[HTML][HTML] Evolution of eddy viscosity in the wake of a wind turbine
The eddy viscosity hypothesis is a popular method in wind turbine wake modeling for
estimating turbulent Reynolds stresses. We document the downstream evolution of eddy …
estimating turbulent Reynolds stresses. We document the downstream evolution of eddy …
[HTML][HTML] Curled-skewed wakes behind yawed wind turbines subject to veered inflow
This work presents a new engineering analytical model that predicts the effect of both the
turbine yaw misalignment and the inflow wind veer on the wake flow distribution downwind …
turbine yaw misalignment and the inflow wind veer on the wake flow distribution downwind …
Floating wind farm experiments through scaling for wake characterization, power extraction, and turbine dynamics
In this study, wind and water tunnel experiments of turbulent wakes in a scaled floating wind
farm are performed. Scaling of a floating wind farm with a scaling ratio of 1: 400 is made …
farm are performed. Scaling of a floating wind farm with a scaling ratio of 1: 400 is made …
Sensitivity of wind farm wake steering strategies to analytical wake models
The aerodynamic interactions between wind turbines arranged in farm layout lead to annual
energy production losses ranging from 10% to 30%. Wake steering represents a promising …
energy production losses ranging from 10% to 30%. Wake steering represents a promising …
Geometric and control optimization of a two cross-flow turbine array
Cross-flow turbines, also known as vertical-axis turbines, convert the kinetic energy in
moving fluid to mechanical energy using blades that rotate about an axis perpendicular to …
moving fluid to mechanical energy using blades that rotate about an axis perpendicular to …
[HTML][HTML] Large Eddy Simulation of Yawed Wind Turbine Wake Deformation
H Kim, S Lee - Energies, 2022 - mdpi.com
Wind turbine wake redirection drawn by a yaw control has been proposed as a strategy to
improve the performance of wind farms. However, the characteristics and the development …
improve the performance of wind farms. However, the characteristics and the development …