Results 11 to 20 of about 13,904 (254)
A New Streamwise Scaling for Wind Turbine Wake Modeling in the Atmospheric Boundary Layer
Energies, 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
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A physically interpretable data-driven surrogate model for wake steering [PDF]
Wind 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
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Upward Shift of Wind Turbine Wakes in Large Wind Farms
Energies, 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
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Application of the Townsend–George theory for free shear flows to single and double wind turbine wakes – a wind tunnel study [PDF]
Wind 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
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Towards higher accuracy in wind farm deficit decay modelling – a comparison
Meteorologische Zeitschrift, 2023 Wind farm wake behaviour and forecasting is gaining the importance recently. It is especially relevant in the German Bight where space for wind farm clusters is limited, and wind farm wake lengths of up to 60 km have been measured.
Moritz Mauz +5 more
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Lidar measurements of yawed-wind-turbine wakes: characterization and validation of analytical models [PDF]
Wind Energy Science, 2020 Wake measurements of a scanning Doppler lidar mounted on the nacelle of a full-scale wind turbine during a wake-steering experiment were used for the characterization of the wake flow, the evaluation of the wake-steering set-up, and the validation of ...
P. Brugger +10 more
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Wake redirection: comparison of analytical, numerical and experimental models [PDF]
Journal of Physics: Conference Series, 2016 This paper focuses on wake redirection techniques for wind farm control. Two control strategies are investigated: yaw misalignment and cyclic pitch control. First, analytical formulas are derived for both techniques, with the goal of providing a simple physical interpretation of the behavior of the two methods. Next, more realistic results are obtained
Wang, Jiangang +2 more
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Renewable Energy, 2022 This study is a follow up on a previous one carried out within the frame of the French project SMARTEOLE, during which, a ground-based scanning LiDAR measurement campaign was conducted in the onshore wind farm of Sole du Moulin Vieux. That previous study focused on the wakes of two wind turbines that experienced different degrees of interaction ...
Hegazy, Amr +3 more
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A Simple Model for Wake-Induced Aerodynamic Interaction of Wind Turbines
Energies, 2023 Wind turbine aerodynamic interactions within wind farms lead to significant energy losses. Optimizing the flow between turbines presents a promising solution to mitigate these losses.
Esmail Mahmoodi +5 more
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Frontiers in Mechanical Engineering, 2023 Planned offshore wind farm clusters have a rated capacity of more than 10 GW. The layout optimization and yield estimation of wind farms is often performed with computationally inexpensive, analytical wake models.
Oliver Maas
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