Results 151 to 160 of about 579 (191)

On the aerodynamics of dual-stage co-axial vertical-axis wind turbines. [PDF]

Wind Eng
Khalid MSU, Portocarrero Mendoza PS, Wood D, Hemmati A.   +3 more
europepmc   +1 more source

Offshore wind farm operation contributed to a slight improvement in seawater quality along the Jiangsu Coast, China. [PDF]

Sci Rep
Wei Z, Wang M, Gao Y, Yu W, Jia A, You Z, Wang Z.   +6 more
europepmc   +1 more source

Silt erosion and cavitation impact on hydraulic turbines performance: An in-depth analysis and preventative strategies. [PDF]

Heliyon
Kashyap T, Thakur R, Ngo GH, Lee D, Fekete G, Kumar R, Singh T.   +6 more
europepmc   +1 more source

Inspection of Floating Offshore Wind Turbines Using Multi-Rotor Unmanned Aerial Vehicles: Literature Review and Trends. [PDF]

Sensors (Basel)
Zhang K, Pakrashi V, Murphy J, Hao G.
europepmc   +1 more source

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Meteorological Controls on Wind Turbine Wakes

Proceedings of the IEEE, 2013
The primary control on the magnitude of the power losses induced by wind turbine wakes in large wind farms is the hub-height wind speed via its link to the turbine thrust coefficient. Hence, at low to moderate wind speeds (between cut-in and rated turbine wind speeds) when the thrust coefficient is high, wake losses are proportionally larger and ...
Rebecca J. Barthelmie, Kurt S. Hansen, Sara C. Pryor   +2 more
openaire   +1 more source

A Hybrid Free Wake Simulation Comparison of Turbine Wake Steering With Innovative Turbine Designs

Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, 2017
Wake shielding in wind farms caused by the interaction of upstream energy-depleted wakes and down-stream turbines substantially reduces individual turbine efficiency and overall wind farm performance. A method is studied to alleviate this problem using shaft tilting to steer wakes upward and reduce the interaction with downstream turbines.
Keye Su, Donald B. Bliss
openaire   +1 more source

Visualization of the tip vortices in a wind turbine wake

Journal of Visualization, 2011
In the present study, an experimental study was conducted to characterize the formation and the evolution of the helical tip vortices and turbulent flow structures in the wake of a horizontal axis wind turbine model placed in an atmospheric boundary layer wind.
Zifeng Yang, Partha Sarkar, Hui Hu
openaire   +2 more sources

Wind turbine wake aerodynamics

Progress in Aerospace Sciences, 2003
Abstract The aerodynamics of horizontal axis wind turbine wakes is studied. The contents is directed towards the physics of power extraction by wind turbines and reviews both the near and the far wake region. For the near wake, the survey is restricted to uniform, steady and parallel flow conditions, thereby excluding wind shear, wind speed and rotor
L.J. Vermeer, J.N. Sørensen, A. Crespo
openaire   +1 more source

Investigation of turbines wakes and wake-rotor interaction in a floating offshore wind farm

IET Conference Proceedings, 2023
Floating offshore wind turbine (FOWT) rotors have complex aero-elastic dynamics due to atmospheric turbulence, interaction with front turbine wakes, and motion of the floating platform. This work investigates the dynamics of wake and wake-rotor interaction in a offshore wind farm, using a reduced order model based on the Actuator Line Model and a ...
A. Castorrini, V. Morici, F. De Girolamo, L. Tieghi, V. F. Barnabei, A. Corsini   +5 more
openaire   +1 more source