Results 71 to 80 of about 10,215 (221)

Weibull‐Neural Network Framework for Wind Turbine Lifetime Monitoring and Disturbance Identification

Wind Energy, Volume 29, Issue 4, April 2026.
ABSTRACT Wind turbines are vital for sustainable energy, yet their reliability under diverse operational and environmental conditions remains a challenge, often leading to costly failures. This study presents a novel Weibull‐Neural Network Framework to enhance wind turbine lifetime monitoring by estimating reliability (R(t)) and mean residual life (MRL)
Fatemeh Kiadaliry, Sadigh Raissi, Alireza Rashidi Komijan   +2 more
wiley   +1 more source

Improved Evaluation of The Wind Power Potential of a Large Offshore Wind Farm Using Four Analytical Wake Models

International Journal of Renewable Energy Development, 2022
The objective of this paper is to investigate the ability of analytical wake models to estimate the wake effects between wind turbines (WTs). The interaction of multiple wakes reduces the total power output produced by a large offshore wind farm (LOFWF).
Mohammed Amine Hassoine, Fouad Lahlou, Adnane Addaim, Abdessalam Ait Madi   +3 more
doaj   +1 more source

The interaction of helical tip and root vortices in a wind turbine wake [PDF]

, 2013
Analysis of the helical vortices measured behind a model wind turbine in a water channel are reported. Phase-locked measurements using planar particle image ve- locimetry are taken behind a Glauert rotor to investigate the evolution and breakdown of the ...
Blackburn, Hugh M., Lo Jacono, David, Nemes, Andras, Sheridan, John, Sherry, Michael   +4 more
core   +4 more sources

Automated Wind Turbine Wake Characterization in Complex Terrain [PDF]

Atmospheric Measurement Techniques, 2019
Abstract. An automated wind turbine wake characterization algorithm has been developed and applied to a dataset of over 19,000 scans measured by scanning Doppler lidar at Perdigão over the period January to June 2017. The algorithm correctly identifies the wake centre position in 62 % of possible wake cases, 46 % having a clear and well-defined wake ...
Rebecca J. Barthelmie, Sara C. Pryor
openaire   +3 more sources

The stability of wakes of floating wind turbines

Physics of Fluids, 2022
Floating offshore wind turbines (FOWTs) are subjected to platform motion induced by wind and wave loads. The oscillatory movement trigger vortex instabilities, modifying the wake structure and influencing the flow reaching downstream wind turbines. In this work, the wake of a FOWT is analyzed by means of numerical simulations and a comparison with ...
V. G. Kleine, L. Franceschini, B. S. Carmo, A. Hanifi, D. S. Henningson   +4 more
openaire   +2 more sources

Improving Power Generation in Rigid‐Wing Groundgen Airborne Wind Energy Systems Using Feedback Control—A Parametric Study

Wind Energy, Volume 29, Issue 4, April 2026.
ABSTRACT This paper explores different reel‐out strategies in a simulated environment to improve the power generation capability of Kitemill's KM1 prototype. The KM1 is a rigid‐wing groundgen airborne wind energy system that flies in circular loops during its power production phase. Firstly, we investigate the impact of flight and ground winch control.
Duc H. Nguyen, Mark H. Lowenberg, Espen Oland   +2 more
wiley   +1 more source

Characterization of Turbulence in Wind Turbine Wakes under Different Stability Conditions from Static Doppler LiDAR Measurements

Remote Sensing, 2017
Wake characteristics are of great importance for wind park performance and turbine loads. While wind tunnel experiments provided a solid base for the basic understanding of the structure and dynamics of wind turbine wakes, the consequent step forward to ...
Valerie-Marie Kumer, Joachim Reuder, Rannveig Oftedal Eikill   +2 more
doaj   +1 more source

High Specification Offshore Blades: Work Package: 1B: Blades Design [PDF]

, 2008
This report outlines the current state of the art in offshore wind turbine blade aerodynamic design, along with the key technical limitations and possible technologies which may improve the aerodynamic design of blades and turbine rotors in the future ...
Brown, Richard, Fletcher, Timothy, Galbraith, Roderick, York, Christopher   +3 more
core  

Combined multi‐metric assessment of diaphragm contractile function in healthy humans: Feasibility, validity and reliability

Experimental Physiology, Volume 111, Issue 4, Page 2308-2323, 1 April 2026.
Abstract The combined use of subcostal ultrasonography and respiratory manometry represents a novel, integrative method for quantifying diaphragm contractile function (force, velocity and power). We evaluated the technical feasibility, construct validity and within‐day test–retest reliability of this method during non‐volitional, volitional and ...
Camilla R. Illidi, Lee M. Romer
wiley   +1 more source

Spatial development of planar and axisymmetric wakes of porous objects under a pressure gradient: a wind tunnel study [PDF]

Wind Energy Science
We report an experimental study on the effect of a constant adverse pressure gradient on the spatial evolution of turbulent wakes generated by different objects.
W. van der Deijl, M. Obligado, M. Obligado, S. Barre, C. Sicot   +4 more
doaj   +1 more source