Results 11 to 20 of about 579 (191)
The Jensen wind farm parameterization [PDF]
Wind Energy Science, 2022 Wind farm power production is known to be significantly affected by turbine wakes. When mesoscale numerical models are used to predict power production, the turbine wakes cannot be resolved directly because they are sub-grid features, and therefore their
Y. Ma, C. L. Archer, A. Vasel-Be-Hagh
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Meso- to microscale modeling of atmospheric stability effects on wind turbine wake behavior in complex terrain [PDF]
Wind Energy Science, 2022 Terrain-induced flow phenomena modulate wind turbine performance and wake behavior in ways that are not adequately accounted for in typical wind turbine wake and wind plant design models.
A. S. Wise +6 more
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Multirotor wind turbine wakes [PDF]
Physics of Fluids, 2019 To fulfill the increasing need for large power generation by wind turbines, the concept of multirotor wind turbines has recently received attention as a promising alternative to conventional massive single-rotor wind turbines. To shed light on the viability of this concept, large-eddy simulation is employed in this study to compare wake flow properties
Majid Bastankhah, Mahdi Abkar
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Instabilities in tidal turbine wakes [PDF]
Proceedings of the European Wave and Tidal Energy Conference, 2023 We report on the observation of vortex instabilities in the wake of a tidal turbine undergoing harmonic unsteady axial inflow (e.g. due to surface waves). The work was carried out using unsteady RANS (URANS) modelling using the open-source CFD software OpenFOAM, using the `pimpleDyMFoam' solver.
Smyth, ASM, Nishino, T, Young, AM
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Numerical investigation of wind turbine wakes under high thrust coefficient
Wind Energy, 2022 We study wind turbine wakes of rotors operating at high thrust coefficients (CT > 24/25) using large‐eddy simulations with a rotating actuator disk model. Wind turbine wakes at high thrust coefficients are different from wakes at low thrust coefficients.
Luis A Martínez‐Tossas +6 more
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The stability of wakes of floating wind turbines
Physics of Fluids, 2022 Floating offshore wind turbines (FOWTs) are subjected to platform motion induced by wind and wave loads. The oscillatory movement trigger vortex instabilities, modifying the wake structure and influencing the flow reaching downstream wind turbines. In this work, the wake of a FOWT is analyzed by means of numerical simulations and a comparison with ...
V. G. Kleine +4 more
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Dynamic soaring in wind turbine wakes
European Journal of Control, 2023 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Harzer, Jakob +3 more
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Three-dimensional structure of wind turbine wakes as measured by scanning lidar [PDF]
Atmospheric Measurement Techniques, 2017 The lower wind speeds and increased turbulence that are characteristic of turbine wakes have considerable consequences on large wind farms: turbines located downwind generate less power and experience increased turbulent loads. The structures of wakes
N. Bodini +4 more
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Wake Behavior behind Turbine Cascades in Compressible Two-Dimensional Flows
International Journal of Rotating Machinery, 2005 The goal of the paper is to describe wake parameters of wakes from turbine cascades in compressible flows especially in planes where the leading edge of the following blade row would be located. Data from experiments with turbine cascades in compressible
Rainer Kurz
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Large-Eddy Simulation of Wakes of Waked Wind Turbines
Energies, 2022 The wake dynamics of a wind turbine are influenced by the atmospheric turbulence and the wake of its upwind turbine. In this work, we investigate the wake characteristics of a waked wind turbine for four different downwind spacings and three different inflows using large-eddy simulation with a turbine parameterized using the actuator surface model. The
Xiaohao Liu +5 more
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