Results 21 to 30 of about 13,230 (227)
Near-wake dynamics of a vertical-axis turbine [PDF]
Journal of Fluid Mechanics, 2022 Cross-flow, or vertical-axis, turbines are a promising technology for capturing kinetic energy in wind or flowing water and their inherently unsteady fluid mechanics present unique opportunities for control optimization of individual rotors or arrays.
Benjamin Strom +2 more
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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
openaire +2 more sources
Study on the Wake of a Miniature Wind Turbine Using the Reynolds Stress Model
Energies, 2016 The Reynolds Stress Model (RSM) is adopted to simulate the wind turbine wake and the simulation results are compared with the wind tunnel test data, simulation results from the standard k-ε model and a modified k-ε model.
Jianxiao Hu, Qingshan Yang, Jian Zhang
doaj +1 more source
Wind Energy, 2022 Wind turbine wakes can be predicted somewhat accurately with mesoscale numerical models, such as the Weather Research and Forecast (WRF) model, via a wind farm parameterization (WFP) that treats the effects of the wakes, which are sub‐grid features, on ...
Yulong Ma +2 more
doaj +1 more source
Effect of a rotor wake on the local heat transfer on the forward half of a circular cylinder [PDF]
, 1986 Turbine rotor-stator wake dynamics was simulated by a spoked wheel rotating in annular flow, generating rotor wakes. Spanwise averaged circumferentially local heat transfer in the circular cylindrical leading edge region of a turbine airfoil was obtained.
Morehouse, K. A., Simoneu, R. J.
core +2 more sources
Generalized coupled wake boundary layer model: applications and comparisons with field and LES data for two wind-farms [PDF]
, 2016 We describe a generalization of the Coupled Wake Boundary Layer (CWBL) model for wind-farms that can be used to evaluate the performance of wind-farms under arbitrary wind inflow directions whereas the original CWBL model (Stevens et al., J.
Gayme, Dennice F. +2 more
core +3 more sources
Energies, 2021 Many bottom-mounted offshore wind farms are currently planned for the coastal areas of Japan, in which wind speeds of 6.0–10.0 m/s are extremely common.
Takanori Uchida +3 more
doaj +1 more source
Brief communication: A clarification of wake recovery mechanisms [PDF]
Wind Energy Science, 2023 Understanding wind turbine wake recovery is important for developing models of wind turbine interaction employed in the design of energy-efficient wind farm layouts.
M. P. van der Laan +2 more
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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
core +1 more source
Optimal tuning of engineering wake models through lidar measurements [PDF]
Wind Energy Science, 2020 Engineering wake models provide the invaluable advantage to predict wind turbine wakes, power capture, and, in turn, annual energy production for an entire wind farm with very low computational costs compared to higher-fidelity numerical tools.
L. Zhan, S. Letizia, G. V. Iungo
doaj +1 more source