Results 151 to 160 of about 1,646 (188)

Met Mast Measurements of Wind Turbine Wakes

2021
This chapter addresses met mast measurements for wind turbine wake research, where we tackle the matter by posing and answering three questions. By asking ourselves what the value is of met mast measurements for wake/aerodynamic research, we describe how met masts can be and have been used in aerodynamic research, accompanied by a number of ...
openaire   +2 more sources

Anisotropy of turbulence in wind turbine wakes

Journal of Wind Engineering and Industrial Aerodynamics, 2005
This work is mainly dedicated to the study of non-isotropic characteristics of turbulence in wind turbine wakes, specifically the shear layer of the near wake. A calculation method based on an explicit algebraic model for the components of the turbulent stress tensor is proposed, and the results are found to be in acceptable agreement with experimental
Rafael Gómez-Elvira, Antonio Crespo, Emilio Migoya, Fernando Manuel, Julio Hernández   +4 more
openaire   +1 more source

Wind turbine wakes over hills

Journal of Fluid Mechanics, 2018
Understanding and predicting the behaviour of wind turbine wake flows over hills is important for optimal design of wind-farm configurations on topography. In this study, we present an analytical modelling framework together with large-eddy simulation (LES) results to investigate turbine wakes over two-dimensional hills.
Sina Shamsoddin, Fernando Porté-Agel
openaire   +3 more sources

Numerical Modeling of Wind Turbine Wakes

Journal of Fluids Engineering, 2002
An aerodynamical model for studying three-dimensional flow fields about wind turbine rotors is presented. The developed algorithm combines a three-dimensional Navier-Stokes solver with a so-called actuator line technique in which the loading is distributed along lines representing the blade forces.
Jens No̸rkær So̸rensen, Wen Zhong Shen   +1 more
openaire   +1 more source

Turbulence characteristics in wind-turbine wakes

Journal of Wind Engineering and Industrial Aerodynamics, 1996
Abstract An analysis of the evolution of turbulence characteristics in wind-turbine wakes has been carried out. Based on experimental results and on numerical results obtained with a CFD code, complemented with some theoretical considerations, simple analytical expressions are proposed for the estimation of the turbulent kinetic energy, k, and its ...
A. Crespo, J. Herna´ndez
openaire   +1 more source

Aeroelastic Analysis of a Wind Turbine Operating in the Wakes of an Upstream Wind Turbine

Proceedings of Global Power & Propulsion Society
This study investigates the impact of an upstream turbine wake on the aeroelastic characteristics of a downstream wind turbine. The wake profiles at distances of 3D, 5D and 7D, where D is the rotor diameter, are extracted from a single turbine simulation with a uniform inflow and applied as the inlet conditions in consequent downstream turbine ...
Shine Win Naung, Myo Tun Kyaw, Kai Zhang, Yufeng Yao, Jun Yao, Mohammad Rahmati   +5 more
openaire   +1 more source

Near-wake behaviour of wind turbines

Journal of Wind Engineering and Industrial Aerodynamics, 1999
If wind turbines are to be large contributors to energy production, a large amount of turbines have to be erected. As the areas suitable for wind energy production are limited, an optimum use of these areas are needed.
openaire   +1 more source

Aerodynamics of wind turbine wakes

2009
This report reviews the available literature on the aerodynamics of wind turbines and wind farms. Firstly, two introductory chapters are devoted to the physics of the flow around a wind turbine and the existing engineering models for blade and wake aerodynamics. The focus of this work is however on the numerical modeling of wakes.
openaire   +1 more source

Advancement of an analytical double-Gaussian full wind turbine wake model

Renewable Energy, 2021
Aidan Keane
exaly  

Wind turbine wake control strategies: A review and concept proposal

Energy Conversion and Management, 2021
Ahmad Vasel-Be-Hagh, Reza Nouri
exaly