Results 1 to 10 of about 1,978 (153)
On the wake deflection of vertical axis wind turbines by pitched blades
Wind Energy, 2023 Wake losses are a critical consideration in wind farm design. The ability to steer and deform wakes can result in increased wind farm power density and reduced energy costs and can be used to optimize wind farm designs.
Ming Huang, Andrea Sciacchitano
exaly +5 more sources
Estimating the wake deflection downstream of a wind turbine in different atmospheric stabilities: an LES study [PDF]
Wind Energy Science, 2016 An intentional yaw misalignment of wind turbines is currently discussed as one possibility to increase the overall energy yield of wind farms. The idea behind this control is to decrease wake losses of downstream turbines by altering the wake ...
Gerald Steinfeld, Detlev Heinemann
exaly +4 more sources
Wake modeling for offshore floating wind farms incorporating time-lag effects in yaw and pitch states [PDF]
Scientific ReportsCompared 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
Vertical wake deflection for floating wind turbines by differential ballast control [PDF]
Wind Energy Science, 2022 This paper presents a feasibility analysis of vertical wake steering for floating turbines by differential ballast control. This new concept is based on the idea of pitching the floater with respect to the water surface, thereby achieving a desired tilt ...
E. M. Nanos +4 more
doaj +3 more sources
Wake of Elongated Low-Rise Building at Oblique Incidences
Atmosphere, 2021 We investigated the turbulent wake of an elongated low-rise building at oblique wind incidence via wind tunnel experiments and numerical simulations. The deflection phenomenon of mean building wake is clearly supported by the downwind trajectory of the ...
Fei Wang, Kit Ming Lam
exaly +3 more sources
A New Analytical Wake Model for Yawed Wind Turbines
Energies, 2018 A new analytical wake model for wind turbines, considering ambient turbulence intensity, thrust coefficient and yaw angle effects, is proposed from numerical and analytical studies.
Guowei Qian, Takeshi Ishihara
exaly +3 more sources
Yaw induced wake deflection-a full-scale validation study
Journal of Physics: Conference Series, 2020 Abstract Aerodynamic wake interactions between turbines located in wind power plants cause both a loss in power production and an increase in fatigue loading of the wind farm turbines. Yaw induced active wake deflection is one possible wind farm control strategy, which can be applied to mitigate wake effects on nearby downstream located ...
Larsen, G.C. +6 more
exaly +3 more sources
Comparative study on the wake deflection behind yawed wind turbine models
Journal of Physics: Conference Series, 2017 In this wind tunnel campaign, detailed wake measurements behind two different model wind turbines in yawed conditions were performed. The wake deflections were quantified by estimating the rotor-averaged available power within the wake. By using two different model wind turbines, the influence of the rotor design and turbine geometry on the wake ...
Lars Sætran, Joachim Peinke, Jan Bartl
exaly +2 more sources
Vertical wake deflection for offshore floating wind turbines by differential ballast control
Journal of Physics: Conference Series, 2020 Abstract This paper discusses the idea of vertical wake deflection for offshore wind turbines using active ballast control. First, the concept of active ballast control for changing the attitude of an offshore wind energy semi-submersible platform is presented and briefly explored.
Stefano Letizia, Carlo L Bottasso
exaly +2 more sources
Deflected wake interaction of tandem flapping foils [PDF]
Journal of Fluid Mechanics, 2020 Abstract
N. S. Lagopoulos +2 more
openaire +4 more sources