Results 61 to 70 of about 10,215 (221)

Large-eddy simulation of spectral coherence in a wind turbine wake [PDF]

, 2008
This work is mainly dedicated to the study of the characteristics of spectral coherence of turbulence fluctuations in wind turbine wakes. A computational fluid dynamics (CFD) code has been implemented using a large-eddy simulation (LES) approach, which ...
A Crespo, A Jimenez, Bendat J S, Crespo A, Crespo A Hernández J, E Migoya, Frandsen S, Germano M Piomelli U Moin P Cabot W H, Højstrup J Courtney M S, J Garcia, Jimenez A Crespo A Migoya E Garcia J, Larsen G C Madsen H A Sørensen N N, Panofsky H A, Pierce C D Moin P, Senocak I Ackerman A S Kirkpatrik M P Stevens D E Mansour N N   +14 more
core   +2 more sources

Introducing a novel method to support polarized citizens to sustain political dialogue

Political Psychology, EarlyView.
Abstract This article offers a novel quasi‐experimental method over two studies for exploring how individuals can navigate politically polarizing discussions to sustain dialogue. Study one (N = 28) involved in‐person, stimulus‐led interviews in England and Scotland to understand the dialogical political positions being adopted on the UK's post‐Brexit ...
Anthony English, Kesi Mahendran
wiley   +1 more source

A Numerical Study of the Effects of Wind Direction on Turbine Wakes and Power Losses in a Large Wind Farm

Energies, 2013
In this study, large-eddy simulations (LESs) were performed to investigate the effects of changing wind direction on the turbine wakes and associated power losses in the Horns Rev offshore wind farm.
Fernando Porté-Agel, Chang-Hung Chen, Yu-Ting Wu   +2 more
doaj   +1 more source

Power and Flow Analysis of Axial Induction Control in an Array of Model-Scale Wind Turbines

Energies, 2022
As research on wind energy has progressed, it has broadened from a focus on the wind turbine to include the entire wind farm. In particular, methods to mitigate the negative effects of upstream wakes on downstream turbines have received significant ...
Daniel Houck, Edwin A. Cowen
doaj   +1 more source

Effect of a rotor wake on the local heat transfer on the forward half of a circular cylinder [PDF]

, 1986
Turbine rotor-stator wake dynamics was simulated by a spoked wheel rotating in annular flow, generating rotor wakes. Spanwise averaged circumferentially local heat transfer in the circular cylindrical leading edge region of a turbine airfoil was obtained.
Morehouse, K. A., Simoneu, R. J.
core   +2 more sources

Uncertainty Quantification of Wind Turbine Wakes Under Random Wind Conditions [PDF]

Volume 13: Safety Engineering, Risk, and Reliability Analysis, 2019
Abstract Understanding and minimizing the uncertainties in the wind energy field is of high importance to reduce the reliability risks and financial risks of wind farm projects. The present work aims to observe the levels of uncertainty in modeling the wake effect by attempting to perform statistical inference of a wake parameter, the ...
Pereira, Tássia, Ekwaro-Osire, Stephen, Dias, João Paulo, Ward, Nicholas, Cunha Jr, Americo   +4 more
openaire   +2 more sources

Large-Eddy Simulation of Wakes of Waked Wind Turbines

Energies, 2022
The wake dynamics of a wind turbine are influenced by the atmospheric turbulence and the wake of its upwind turbine. In this work, we investigate the wake characteristics of a waked wind turbine for four different downwind spacings and three different inflows using large-eddy simulation with a turbine parameterized using the actuator surface model. The
Xiaohao Liu, Zhaobin Li, Xiaolei Yang, Duo Xu, Seokkoo Kang, Ali Khosronejad   +5 more
openaire   +2 more sources

Feasibility Study of implementing Wake Steering in Floating Wind Farms: Power Gain, Load Estimation and Economic Analysis

Wind Energy, Volume 29, Issue 5, May 2026.
ABSTRACT This paper presents an overview of the CONFLOWS project, a collaborative effort between DNV, Marine Power Systems (MPS) and Durham University. The project investigates the effects of wake steering from aerodynamic, structural and economic modelling perspectives, aiming to provide a comprehensive understanding of its impact on performance and ...
Mohammadreza Mohammadi, Ervin Bossanyi, Matthew Harrison, Michael Ogbeifun, Caitlin McCarthy, John Chapman, Majid Bastankhah, Lars Landberg   +7 more
wiley   +1 more source

Wind Farm Loads under Wake Redirection Control

Energies, 2020
Active wake control (AWC) is a strategy for operating wind farms in such a way as to reduce the wake effects on the wind turbines, potentially increasing the overall power production. There are two concepts to AWC: induction control and wake redirection.
Stoyan Kanev, Edwin Bot, Jack Giles
doaj   +1 more source

Field Measurements of Wind Turbine Wakes with Lidars [PDF]

Journal of Atmospheric and Oceanic Technology, 2013
AbstractField measurements of the wake flow produced from a 2-MW Enercon E-70 wind turbine were performed using three scanning Doppler wind lidars. A GPS-based technique was used to determine the position of the wind turbine and the wind lidar locations, as well as the direction of the laser beams.
Iungo G. Valerio, Wu Yu-Ting, Porte-Agel Fernando   +2 more
openaire   +1 more source