Results 21 to 30 of about 579 (191)

Near-wake dynamics of a vertical-axis turbine [PDF]

open access: yesJournal 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
openaire   +2 more sources

Study on the Wake of a Miniature Wind Turbine Using the Reynolds Stress Model

open access: yesEnergies, 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

Comparison of individual versus ensemble wind farm parameterizations inclusive of sub‐grid wakes for the WRF model

open access: yesWind 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

Doppler Lidar Investigations of Wind Turbine Near-Wakes and LES Modeling with New Porous Disc Approach

open access: yesEnergies, 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]

open access: yesWind 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
doaj   +1 more source

Optimal tuning of engineering wake models through lidar measurements [PDF]

open access: yesWind 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

A numerical study of tilt‐based wake steering using a hybrid free‐wake method

open access: yesWind Energy, 2020
This study investigates the potential of using tilt‐based wake steering to alleviate wake shielding problems experienced by downwind turbines. Numerical simulations of turbine wakes have been conducted using a hybrid free‐wake analysis combining vortex ...
Keye Su, Donald Bliss
doaj   +1 more source

Replacing wakes with streaks in wind turbine arrays

open access: yesWind 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
doaj   +1 more source

Research on the Power Capture and Wake Characteristics of a Wind Turbine Based on a Modified Actuator Line Model

open access: yesEnergies, 2022
On a wind farm, the wake has an important impact on the performance of the wind turbines. For example, the wake of an upstream wind turbine affects the blade load and output power of the downstream wind turbine.
Feifei Xue   +6 more
doaj   +1 more source

On the Wind Turbine Wake Mathematical Modelling

open access: yesEnergy Procedia, 2018
Abstract The present paper deals with a study on the wind turbine wake mathematical modelling as well as experimental validation by means of wind tunnel experiments. In particular, different wind turbine wake’s equations were implemented and results compared with experimental data.
S. BRUSCA   +6 more
openaire   +2 more sources

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