Results 21 to 30 of about 15,409,441 (276)
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
openaire +1 more source
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
doaj +1 more source
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
openaire +2 more sources
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
doaj +1 more source
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
doaj +1 more source
Aerodynamic Performance and Wake Flow of Crosswind Kite Power Systems
Energies, 2022 This paper presents some results from a computational fluid dynamics (CFD) model of a multi-megawatt crosswind kite spinning on a circular path in a straight downwind configuration. The unsteady Reynolds averaged Navier-Stokes equations closed by the k−ω
Mojtaba Kheiri +4 more
doaj +1 more source
An alternative form of the super-Gaussian wind turbine wake model [PDF]
Wind Energy Science, 2020 A new analytical wind turbine wake model, based on a super-Gaussian shape function, is presented. The super-Gaussian function evolves from a nearly top-hat shape in the near wake to a Gaussian shape in the far wake, which is consistent with observations ...
F. Blondel, M. Cathelain
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The curled wake model: a three-dimensional and extremely fast steady-state wake solver for wind plant flows [PDF]
Wind Energy Science, 2021 Wind turbine wake models typically require approximations, such as wake superposition and deflection models, to accurately describe wake physics. However, capturing the phenomena of interest, such as the curled wake and interaction of multiple wakes, in ...
L. A. Martínez-Tossas +7 more
doaj +1 more source
Modelling Yawed Wind Turbine Wakes: Extension of a Gaussian-Based Wake Model
Energies, 2021 Yaw-based wake steering control is a potential way to improve wind plant overall performance. For its engineering application, it is crucial to accurately predict the turbine wakes under various yawed conditions within a short time.
De-Zhi Wei, Ni-Na Wang, De-Cheng Wan
doaj +1 more source
A computationally efficient engineering aerodynamic model for swept wind turbine blades [PDF]
Wind Energy Science, 2022 In this work, a computationally efficient engineering model for the aerodynamics of swept wind turbine blades is proposed for the extended blade element momentum (BEM) formulation.
A. Li +4 more
doaj +1 more source