Results 41 to 50 of about 6,676 (235)
Field Measurements of Wind Turbine Wakes with Lidars [PDF]
Journal of Atmospheric and Oceanic Technology, 2013 AbstractField measurements of the wake flow produced from a 2-MW Enercon E-70 wind turbine were performed using three scanning Doppler wind lidars. A GPS-based technique was used to determine the position of the wind turbine and the wind lidar locations, as well as the direction of the laser beams.
Iungo G. Valerio +2 more
openaire +2 more sources
The dynamic coupling between the pulse wake mixing strategy and floating wind turbines [PDF]
Wind Energy Science, 2023 In recent years, control techniques such as dynamic induction control (often referred to as “the pulse”) have shown great potential in increasing wake mixing, with the goal of minimising turbine-to-turbine interaction within a wind farm.
D. van den Berg +2 more
doaj +1 more source
MULTIFRACTAL ANALYSIS OF A WAKE FOR A SINGLE WIND TURBINE [PDF]
Topical Problems of Fluid Mechanics 2017, 2017 Wind energy is an important component of renewable energy sources. Studying of turbulent wakes for wind turbines and interactions with Atmospheric Boundary Layer is an urgent problem. The theory of chaos and fractal geometry with some research in fluid dynamics will change profoundly the scope of complex scale to scale transport in theory of turbulence,
Strijhak, Sergei +2 more
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High-resolution CFD modelling of Lillgrund Wind farm [PDF]
, 2013 We report on a fully dynamic simulation of Vattenfall’s Lillgrund offshore Wind Farm, with a focus on the wake effects of turbines on the performance of individual turbines, and of the farm as a whole.The model uses a dynamic representation of a wind ...
Creech, Angus +5 more
core +1 more source
Experimental investigation of wind turbine wake and load dynamics during yaw maneuvers [PDF]
Wind Energy Science, 2021 This article investigates the far wake response of a yawing upstream wind turbine and its impact on the global load variation in a downstream wind turbine.
S. Macrí +4 more
doaj +1 more source
Aeroelastic load validation in wake conditions using nacelle-mounted lidar measurements [PDF]
Wind Energy Science, 2020 We propose a method for carrying out wind turbine load validation in wake conditions using measurements from forward-looking nacelle lidars. Two lidars, a pulsed- and a continuous-wave system, were installed on the nacelle of a 2.3 MW wind turbine
D. Conti, N. Dimitrov, A. Peña
doaj +1 more source
Journal of Physics: Conference Series, 2015 A team of researchers from the National Renewable Energy Laboratory and Statoil used large-eddy simulations to numerically investigate the merging wakes from upstream offshore wind turbines. Merging wakes are typical phenomena in wind farm flows in which neighboring turbine wakes consolidate to form complex flow patterns that are as yet not well ...
S Lee +6 more
openaire +1 more source
Wake steering of multirotor wind turbines [PDF]
Wind Energy, 2021 Abstract In this paper, wake steering is applied to multirotor turbines to determine whether it has the potential to reduce wind plant wake losses. Through application of rotor yaw to multirotor turbines, a new degree of freedom is introduced to wind farm control such that wakes can be expanded, channelled or redirected to improve ...
Gustav A. Speakman +3 more
openaire +6 more sources
Interaction of an Eulerian flue gas plume with wind turbines [PDF]
, 2010 The reduced availability of sites with the requisite wind resource, planning permission and public acceptance for the placement of wind turbines poses a significant challenge to future expansion of the wind energy industry.
Fletcher, Timothy M. +3 more
core +1 more source
Stability of Floating Wind Turbine Wakes
Journal of Physics: Conference Series, 2021 Abstract Floating offshore wind turbines (FOWTs) are the next frontier in offshore wind energy, allowing exploration of deep-water regions previously unavailable to fixed-foundation turbines. Since offshore turbines operate in lower turbulence levels, the intrinsic hydrodynamic unstable modes of the tip vortices can have even more ...
V G Kleine +4 more
openaire +1 more source