Results 11 to 20 of about 15,409,441 (276)

A linear wake expansion function for the double‐Gaussian analytical wake model

open access: yesEnergy Science & Engineering, 2023
The double‐Gaussian (DG) approach for analytical wake modeling leads to a better understanding of the wake transition mechanism within a full‐wake region behind a non‐yawed horizontal‐axis wind turbine (HAWT).
Qidun Maulana Binu Soesanto   +2 more
doaj   +2 more sources

A New Analytical Wake Model for Yawed Wind Turbines [PDF]

open access: yesEnergies, 2018
A new analytical wake model for wind turbines, considering ambient turbulence intensity, thrust coefficient and yaw angle effects, is proposed from numerical and analytical studies.
Guo-Wei Qian, Takeshi Ishihara
doaj   +2 more sources

Wind Turbine Wake Characterization with Nacelle-Mounted Wind Lidars for Analytical Wake Model Validation [PDF]

open access: yesRemote Sensing, 2018
This study presents the setup, methodology and results from a measurement campaign dedicated to the characterization of full-scale wind turbine wakes under different inflow conditions.
Fernando Carbajo Fuertes   +2 more
doaj   +4 more sources

A Novel Analytical Wake Model with a Cosine-Shaped Velocity Deficit [PDF]

open access: yesEnergies, 2020
A novel analytical model is proposed and validated in this paper to predict the velocity deficit in the wake downwind of a wind turbine. The model is derived by employing mass and momentum conservation and assuming a cosine-shaped distribution for the ...
Ziyu Zhang, Peng Huang, Haocheng Sun
doaj   +2 more sources

Simulation of wake vortex effects for UAVs in close formation flight [PDF]

open access: yes, 2009
This paper addresses the development of multiple UAV deployment simulation models that include representative aerodynamic cross-coupling effects. Applications may include simulations of autonomous aerial refuelling and formation flying scenarios.
Whidborne, James F.   +2 more
core   +8 more sources

Analytical modelling prediction by using wake oscillator model for vortex-induced vibrations

open access: yesJournal of Mechanical Engineering and Sciences, 2017
Explorations by oil and gas companies have moved from shallow to deep water to satisfy consumers' changing needs. A circular- shaped cylinder structure placed in deep water is also known spar platform, is normally floated and subjected to severe ...
W.N.W. Hussin   +3 more
doaj   +2 more sources

A simple stationary semi-analytical wake model [PDF]

open access: yes, 2009
We present an idealized simple, but fast, semi-analytical algorithm for computation of stationary wind farm wind fields with a possible potential within a multi-fidelity strategy for wind farm topology optimization.Basically, the model considers wakes as
Larsen, Gunner Chr.
core   +2 more sources

Predicting the wake structure of the HART II rotor using the vorticity transport model [PDF]

open access: yes, 2008
Brown’s Vorticity Transport Model has been used to predict the wake structure and resultant blade loading of the rotor that was studied during the HART II experimental programme. The descending flight condition of the experiment yields significant high-
Kelly, Mary E.   +3 more
core   +13 more sources

Wake dynamics and rotor-fuselage aerodynamic interactions [PDF]

open access: yes, 2009
The unsteady loads experienced by a helicopter are known to be strongly influenced by aerodynamic interactions between the rotor and fuselage; these unsteady loads can lead to deficiencies in handling qualities and unacceptable vibratory characteristics ...
Brown, R.E., Kenyon, A.R.
core   +4 more sources

Lidar measurements of yawed-wind-turbine wakes: characterization and validation of analytical models [PDF]

open access: yesWind Energy Science, 2020
Wake measurements of a scanning Doppler lidar mounted on the nacelle of a full-scale wind turbine during a wake-steering experiment were used for the characterization of the wake flow, the evaluation of the wake-steering set-up, and the validation of ...
P. Brugger   +10 more
doaj   +1 more source

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