Results 121 to 130 of about 31,364 (231)

Modelling wind turbine wakes for wind farms

, 2016
The simulation of the wakes behind wind turbines is important in predicting energy yields in wind farms, and so plays a role in planning the layout of these farms. As both wind turbines and farms increase in size, wind farm modellers have faced challenges as previously-held assumptions and parameterisations become inadequate – requiring more detailed ...
Creech, Angus, Früh, Wolf-Gerrit
openaire   +1 more source

Spectral coherence in wind turbine wakes

Journal of Wind Engineering and Industrial Aerodynamics, 1999
Abstract Spectral coherence in the wake of a wind turbine situated in a wind farm has been investigated. Results are presented for lateral coherence at two heights with 5 m separation and vertical coherence at 13 m separation at different downstream stations in the wake. Also presented is the decay of turbulence generated by the wake.
openaire   +2 more sources

Wind Tunnel Evaluation of Aerodynamic Loads in FAST.Farm Under Controlled Wake Conditions

Wind Energy
This study investigates the capability of FAST.Farm, a mid‐fidelity wind farm simulation tool employing the dynamic wake meandering approach, to accurately predict loads on wind turbines in a small wind farm.
Alessandro Fontanella, Mohammad Youssef Mahfouz, Marco De Pascali, Po Wen Cheng, Marco Belloli   +4 more
doaj   +1 more source

Analysis and validation of CFD wind farm models in complex terrain. Effects induced by topography and wind turbines [PDF]

, 2010
Wind farms have been extensively simulated through engineering models for the estimation of wind speed and power deficits inside wind farms. These models were designed initially for a few wind turbines located in flat terrain.
Barthelmie, Rebecca J., Cabezón Martínez, Daniel, Hansen, Kurt S.   +2 more
core  

Research on Aerodynamic Characteristics of Three Offshore Wind Turbines Based on Large Eddy Simulation and Actuator Line Model

Journal of Marine Science and Engineering
Investigating the aerodynamic performance and wake characteristics of wind farms under different levels of wake effects is crucial for optimizing wind farm layouts and improving power generation efficiency.
Chen Fu, Zhihao Zhang, Meixin Yu, Dai Zhou, Hongbo Zhu, Lei Duan, Jiahuang Tu, Zhaolong Han   +7 more
doaj   +1 more source

Simulating wind turbine interactions using the vorticity transport equations [PDF]

, 2009
The aerodynamic interactions that can occur within a wind farm result in the constituent turbines generating a lower power output than would be possible if each of the turbines were operated in isolation.
Brown, R.E., Fletcher, Timothy M.
core  

Applicability Evaluation of Wind Turbine Wake Models

南方能源建设
[Introduction] The wake effect of wind turbines is an important cause of energy loss in wind farms. The wake study of wind turbines is beneficial to optimization of the turbine arrangement and improvement of the economic efficiency of wind farms. [Method]
Sheng LI, Wenpeng GE, Jiacheng WU, Chunming QU, Rui SUN   +4 more
doaj   +1 more source

Effect of Turbulence Intensity on the Induction Factor and Power Efficiency of Wind Turbines

Wind Energy
This study investigates the effect of turbulence intensity on wind turbine induction factor and power efficiency through its influence on the turbine wake.
Tristan Revaz, Fernando Porté‐Agel
doaj   +1 more source

Wind turbine wake meandering

, 2013
In this master thesis the meandering of the wake of a three bladed horizontal axis model wind turbine has been studied. Measurements have been conducted by the use of four hot-wire probes located at multiple nearby points in the wake at X/D = 1, 3 and 5 downstream the model wind turbine.
openaire   +1 more source

Vertical-axis wind turbines in oblique flow: sensitivity to rotor geometry [PDF]

, 2011
Increasing interest is being shown worldwide in the application of vertical-axis wind turbines for decentralised electricity generation within cities.
Brown, Richard, Scheurich, Frank
core