Upward Shift of Wind Turbine Wakes in Large Wind Farms
Energies, 2023 A detailed description of wake characteristics is essential for optimizing wind farm performance. Compared with the wake of a stand-alone wind turbine, less attention has been paid to wind turbine wakes in large wind farms.
Zewei Wang, Xiaolei Yang
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Characterisation of a horizontal axis wind turbine’s tip and root vortices [PDF]
, 2013 The vortical near wake of a model horizontal axis wind turbine has been investigated experimentally in a water channel. The objective of this work is to study vortex interaction and stability of the helical vortex filaments within a horizontal axis ...
Lo Jacono, David +2 more
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Wind turbine wakes for wind energy [PDF]
, 2011 During recent years, wind energy has moved from an emerging technology to a nearly competitive technology. This fact, coupled with an increasing global focus on environmental concern and a political desire of a certain level of diversification in the ...
Crespo Martínez, Antonio +1 more
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Replacing wakes with streaks in wind turbine arrays
Wind Energy, 2021 Wind turbine wakes negatively affect downwind turbines in wind farms reducing their global efficiency. The reduction of wake‐turbine interactions by actuating control on yaw angles and induction factors is an active area of research.
Carlo Cossu
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Bidirectional wakes over complex terrain using SCADA data and wake models [PDF]
Wind Energy ScienceWe investigate bidirectional wake effects between two wind turbines of the same type in a hill region in northern Japan using supervisory control and data acquisition (SCADA) data and validate the simulated wakes using 12 wake models. The extent to which
N. Sasanuma +6 more
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3-D shear-layer model for the simulation of multiple wind turbine wakes: description and first assessment [PDF]
Wind Energy Science, 2017 The number of turbines installed in offshore wind farms has strongly increased in the last years and at the same time the need for more precise estimations of the wind farm efficiency too.
D. Trabucchi, L. Vollmer, M. Kühn
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Simulated wind farm wake sensitivity to configuration choices in the Weather Research and Forecasting model version 3.8.1 [PDF]
Geoscientific Model Development, 2020 Wakes from wind farms can extend over 50 km downwind in stably stratified conditions. These wakes can undermine power production at downwind turbines, adversely impacting revenue. As such, wind farm wake impacts must be considered in wind resource
J. M. Tomaszewski +2 more
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Wake properties and power output of very large wind farms for different meteorological conditions and turbine spacings: a large-eddy simulation case study for the German Bight [PDF]
Wind Energy Science, 2022 Germany's expansion target for offshore wind power capacity of 40 GW by the year 2040 can only be reached if large portions of the Exclusive Economic Zone in the German Bight are equipped with wind farms.
O. Maas, S. Raasch
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Simulation of wind turbine wake interaction using the vorticity transport model [PDF]
, 2010 The aerodynamic interactions that can occur within a wind farm can result in the constituent turbines generating a lower power output than would be possible if each of the turbines were operated in isolation.
Ahlin +15 more
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Remote Sensing, 2019 Accurate prediction of wind turbine wakes is important for more efficient design and operation of wind parks. Volumetric wake measurements of nacelle-mounted Doppler lidars are used to characterize the wake of a full-scale wind turbine and to validate an
Peter Brugger +4 more
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