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An Analytical Model for the Effect of Vertical Wind Veer on Wind Turbine Wakes [PDF]

open access: yesEnergies, 2018
In this study, an analytical wake model for predicting the mean velocity field downstream of a wind turbine under veering incoming wind is systematically derived and validated.
Mahdi Abkar   +2 more
doaj   +7 more sources

An Analytical Model for Wind Turbine Wakes under Pressure Gradient

open access: yesEnergies, 2022
In this study, we present an analytical modeling framework for wind turbine wakes under an arbitrary pressure gradient imposed by the base flow. The model is based on the conservation of the streamwise momentum and self-similarity of the wake velocity ...
Arslan Salim Dar, Fernando Porté-Agel
doaj   +4 more sources

Wake modeling for offshore floating wind farms incorporating time-lag effects in yaw and pitch states [PDF]

open access: yesScientific Reports
Compared to fixed-bottom offshore wind farms, offshore floating wind farms experience unstable platform motions that induce rotor misalignment. Such misalignment causes wake redirection, necessitating its consideration in wake modeling for enhanced ...
Liye Zhao   +5 more
doaj   +2 more sources

A Calibration Procedure for an Analytical Wake Model Using Wind Farm Operational Data

open access: yesEnergies, 2020
Wind energy is one of the fastest growing renewable energy sources in the U.S. Wind turbine wakes change the flow field within wind farms and reduce power generation. Prior research has used experimental and computational methods to investigate and model
Jian Teng, Corey D. Markfort
doaj   +3 more sources

Validation of an interpretable data-driven wake model using lidar measurements from a field wake steering experiment [PDF]

open access: yesWind Energy Science, 2023
Data-driven wake models have recently shown a high accuracy in reproducing wake characteristics from numerical data sets. This study used wake measurements from a lidar-equipped commercial wind turbine and inflow measurements from a nearby meteorological
B. A. M. Sengers   +4 more
doaj   +1 more source

A New Streamwise Scaling for Wind Turbine Wake Modeling in the Atmospheric Boundary Layer

open access: yesEnergies, 2022
In this study, we aim to investigate if there is a scaling of the streamwise distance from a wind turbine that leads to a collapse of the mean wake velocity deficit under different ambient turbulence levels.
Dara Vahidi, Fernando Porté-Agel
doaj   +1 more source

A physically interpretable data-driven surrogate model for wake steering [PDF]

open access: yesWind Energy Science, 2022
Wake steering models for control purposes are typically based on analytical wake descriptions tuned to match experimental or numerical data. This study explores whether a data-driven surrogate model with a high degree of physical interpretation can ...
B. A. M. Sengers   +4 more
doaj   +1 more source

Upward Shift of Wind Turbine Wakes in Large Wind Farms

open access: yesEnergies, 2023
A detailed description of wake characteristics is essential for optimizing wind farm performance. Compared with the wake of a stand-alone wind turbine, less attention has been paid to wind turbine wakes in large wind farms.
Zewei Wang, Xiaolei Yang
doaj   +1 more source

Anisotropic double‐Gaussian analytical wake model for an isolated horizontal‐axis wind turbine

open access: yesEnergy Science & Engineering, 2022
An anisotropic double Gaussian (DG) model for analytical wake modeling to predict the streamwise wake velocity behind an isolated non‐yawed horizontal‐axis wind turbine is proposed.
Qidun M. B. Soesanto   +2 more
doaj   +1 more source

Application of the Townsend–George theory for free shear flows to single and double wind turbine wakes – a wind tunnel study [PDF]

open access: yesWind Energy Science, 2022
The evolution of the mean velocity and the turbulence downstream of wind turbine wakes within the atmospheric boundary layer has been studied over the past decades, but an analytical description is still missing.
I. Neunaber   +3 more
doaj   +1 more source

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