Results 21 to 30 of about 13,904 (254)

Aerodynamic Performance and Wake Flow of Crosswind Kite Power Systems

open access: yesEnergies, 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]

open access: yesWind 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
doaj   +1 more source

Modelling Yawed Wind Turbine Wakes: Extension of a Gaussian-Based Wake Model

open access: yesEnergies, 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

The curled wake model: a three-dimensional and extremely fast steady-state wake solver for wind plant flows [PDF]

open access: yesWind 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

A computationally efficient engineering aerodynamic model for swept wind turbine blades [PDF]

open access: yesWind 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

Experiments in the wind turbine far wake for the evaluation of an analytical wake model

open access: yesJournal of Physics: Conference Series, 2017
Nowadays, not only the size of single wind turbines but also the size of wind farms is increasing. Understanding the interaction between the turbines and especially the wakes formed behind them are getting more important to further improve such wind turbine arrays. Consequently, new issues in wind energy research arise.
Garcia, Luis   +3 more
openaire   +3 more sources

A physical wind‐turbine wake growth model under different stratified atmospheric conditions

open access: yesWind Energy, 2022
The wind‐turbine wake growth is crucial for wake assessment. At present, it can only be determined empirically, which is the primary source of prediction errors in the analytical wake model, and a physically‐based method is urgently needed. Recently, the
Bowen Du, Mingwei Ge, Yongqian Liu
doaj   +1 more source

Brief communication: A double-Gaussian wake model [PDF]

open access: yesWind Energy Science, 2020
In this paper, an analytical wake model with a double-Gaussian velocity distribution is presented, improving on a similar formulation by Keane et al. (2016).
J. Schreiber, A. Balbaa, C. L. Bottasso
doaj   +1 more source

Analytical Modeling for Prediction of Horizontal-Axis Wind Turbines Power Generation in Wind Farms Based on an Analytical Wake Model [PDF]

open access: yesIranica Journal of Energy and Environment, 2022
The development of models that predict power production of wind farms (WFs) by considering the interacting wakes is important; because wakes of the turbines exert a significant influence on power production of turbines, and hence on the layout of wind ...
P. A. Ayoubi, M. E. Yazdi, I. Harsini
doaj   +1 more source

An analytical model for a full wind turbine wake

open access: yesJournal of Physics: Conference Series, 2016
An analytical wind turbine wake model is proposed to predict the wind velocity distribution for all distances downwind of a wind turbine, including the near-wake. This wake model augments the Jensen model and subsequent derivations thereof, and is a direct generalization of that recently proposed by Bastankhah and Porte-Agel.
Keane, Aidan   +4 more
openaire   +2 more sources

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