Results 31 to 40 of about 10,215 (221)
Simulated wind farm wake sensitivity to configuration choices in the Weather Research and Forecasting model version 3.8.1 [PDF]
Geoscientific Model Development, 2020 Wakes from wind farms can extend over 50 km downwind in stably stratified conditions. These wakes can undermine power production at downwind turbines, adversely impacting revenue. As such, wind farm wake impacts must be considered in wind resource
J. M. Tomaszewski +2 more
doaj +1 more source
Characterisation of a horizontal axis wind turbine’s tip and root vortices [PDF]
, 2013 The vortical near wake of a model horizontal axis wind turbine has been investigated experimentally in a water channel. The objective of this work is to study vortex interaction and stability of the helical vortex filaments within a horizontal axis ...
Lo Jacono, David +2 more
core +1 more source
Remote Sensing, 2019 Accurate prediction of wind turbine wakes is important for more efficient design and operation of wind parks. Volumetric wake measurements of nacelle-mounted Doppler lidars are used to characterize the wake of a full-scale wind turbine and to validate an
Peter Brugger +4 more
doaj +1 more source
Energies, 2020 Wind turbines are usually clustered in wind farms which causes the downstream turbines to operate in the turbulent wakes of upstream turbines. As turbulence is directly related to increased fatigue loads, knowledge of the turbulence in the wake and its ...
Ingrid Neunaber +4 more
doaj +1 more source
Wind Turbine Wakes in Directionally Varying Wind Shears [PDF]
, 2019 In the atmospheric boundary layer, the Coriolis force associated with the Earth’s rotation induces a spanwise wind shear in addition to the wall-normal one leading to a continuous change in wind direction with height. The spanwise wind shear in directionally sheared inflow has a significant impact on the formation and development of wind-turbine wakes.
Mahdi Abkar +2 more
openaire +4 more sources
Stability of Floating Wind Turbine Wakes
Journal of Physics: Conference Series, 2021 Abstract Floating offshore wind turbines (FOWTs) are the next frontier in offshore wind energy, allowing exploration of deep-water regions previously unavailable to fixed-foundation turbines. Since offshore turbines operate in lower turbulence levels, the intrinsic hydrodynamic unstable modes of the tip vortices can have even more ...
V G Kleine +4 more
openaire +1 more source
Atmospheric Turbulence Effects on Wind-Turbine Wakes: An LES Study
Energies, 2012 A numerical study of atmospheric turbulence effects on wind-turbine wakes is presented. Large-eddy simulations of neutrally-stratified atmospheric boundary layer flows through stand-alone wind turbines were performed over homogeneous flat surfaces with ...
Yu-Ting Wu, Fernando Porté-Agel
doaj +1 more source
Wake interaction and power production of variable height model wind farms [PDF]
, 2014 Understanding wake dynamics is an ongoing research topic in wind energy, since wakes have considerable effects on the power production when wind turbines are placed in a wind farm.
Cal R B +6 more
core +2 more sources
Characterizing the Wake Effects on Wind Power Generator Operation by Data-Driven Techniques
Energies, 2023 Wakes between neighboring wind turbines are a significant source of energy loss in wind farm operations. Extensive research has been conducted to analyze and understand wind turbine wakes, ranging from aerodynamic descriptions to advanced control ...
Davide Astolfi +2 more
doaj +1 more source
Towards a Simplified Dynamic Wake Model using POD Analysis [PDF]
, 2015 We apply the proper orthogonal decomposition (POD) to large eddy simulation data of a wind turbine wake in a turbulent atmospheric boundary layer. The turbine is modeled as an actuator disk. Our analyis mainly focuses on the question whether POD could be
Bastine, David +3 more
core +2 more sources