Results 11 to 20 of about 10,195 (155)

Three-dimensional structure of wind turbine wakes as measured by scanning lidar [PDF]

open access: yesAtmospheric Measurement Techniques, 2017
The lower wind speeds and increased turbulence that are characteristic of turbine wakes have considerable consequences on large wind farms: turbines located downwind generate less power and experience increased turbulent loads. The structures of wakes
N. Bodini   +4 more
doaj   +1 more source

Numerical investigation of wind turbine wakes under high thrust coefficient

open access: yesWind Energy, 2022
We study wind turbine wakes of rotors operating at high thrust coefficients (CT > 24/25) using large‐eddy simulations with a rotating actuator disk model. Wind turbine wakes at high thrust coefficients are different from wakes at low thrust coefficients.
Luis A Martínez‐Tossas   +6 more
doaj   +1 more source

Research on the Power Capture and Wake Characteristics of a Wind Turbine Based on a Modified Actuator Line Model

open access: yesEnergies, 2022
On a wind farm, the wake has an important impact on the performance of the wind turbines. For example, the wake of an upstream wind turbine affects the blade load and output power of the downstream wind turbine.
Feifei Xue   +6 more
doaj   +1 more source

Comparison of individual versus ensemble wind farm parameterizations inclusive of sub‐grid wakes for the WRF model

open access: yesWind Energy, 2022
Wind turbine wakes can be predicted somewhat accurately with mesoscale numerical models, such as the Weather Research and Forecast (WRF) model, via a wind farm parameterization (WFP) that treats the effects of the wakes, which are sub‐grid features, on ...
Yulong Ma   +2 more
doaj   +1 more source

Study on the Wake of a Miniature Wind Turbine Using the Reynolds Stress Model

open access: yesEnergies, 2016
The Reynolds Stress Model (RSM) is adopted to simulate the wind turbine wake and the simulation results are compared with the wind tunnel test data, simulation results from the standard k-ε model and a modified k-ε model.
Jianxiao Hu, Qingshan Yang, Jian Zhang
doaj   +1 more source

Integrated Design and Experimental Validation of a Fixed-Pitch Rotor for Wind Tunnel Testing

open access: yesEnergies, 2023
In this paper we report about the design and validation of a 1.2 m wind turbine rotor with fixed blade pitch. The wind turbine is a scaled version of the DTU 10 MW. Integrated design of dimensional scaling laws, blade aerodynamics, and turbine control is
Alessandro Fontanella   +2 more
doaj   +1 more source

Do wind turbines pose roll hazards to light aircraft? [PDF]

open access: yesWind Energy Science, 2018
Wind energy accounted for 5.6 % of all electricity generation in the United States in 2016. Much of this development has occurred in rural locations, where open spaces favorable for harnessing wind also serve general aviation airports. As such,
J. M. Tomaszewski   +4 more
doaj   +1 more source

Generalized coupled wake boundary layer model: applications and comparisons with field and LES data for two wind-farms [PDF]

open access: yes, 2016
We describe a generalization of the Coupled Wake Boundary Layer (CWBL) model for wind-farms that can be used to evaluate the performance of wind-farms under arbitrary wind inflow directions whereas the original CWBL model (Stevens et al., J.
Gayme, Dennice F.   +2 more
core   +3 more sources

Optimal tuning of engineering wake models through lidar measurements [PDF]

open access: yesWind Energy Science, 2020
Engineering wake models provide the invaluable advantage to predict wind turbine wakes, power capture, and, in turn, annual energy production for an entire wind farm with very low computational costs compared to higher-fidelity numerical tools.
L. Zhan, S. Letizia, G. V. Iungo
doaj   +1 more source

Wind-turbine wake encounter by light aircraft [PDF]

open access: yes, 2017
No abstract ...
Barakos, G.N., Wang, Y., White, M.
core   +1 more source

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