Results 31 to 40 of about 13,230 (227)

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

Simulation of wind turbine wake interaction using the vorticity transport model [PDF]

open access: yes, 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
core   +1 more source

Turbulent kinetic energy production in the vane of a low-pressure linear turbine cascade with incoming wakes [PDF]

open access: yes, 2015
Copyright © 2015 V. Michelassi and J. G. Wissink. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is ...
Michelassi, V, Wissink, JG
core   +3 more sources

Influence of Upstream Sweeping Wake Number on the Unsteady Flow Mechanism in an Integrated Aggressive Intermediate Turbine Duct

open access: yesMachines, 2023
This paper focuses on the dynamic internal flow in the integrated aggressive intermediate turbine duct (AITD) with different HPT wake numbers, using CFX Solver with dynamic Reynolds-averaged Navier–Stokes equations (RANS), the shear stress transmission κ-
Xiaoqing Ouyang   +6 more
doaj   +1 more source

Transition models for turbomachinery boundary layer flows : a review [PDF]

open access: yes, 2017
Current models for transition in turbomachinery boundary layer flows are reviewed. The basic physical mechanisms of transition processes and the way these processes are expressed by model ingredients are discussed.
Dick, Erik, Kubacki, Slawomir
core   +2 more sources

The Influence of Different Wake Profiles on Losses in a Low Pressure Turbine Cascade †

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2018
Large eddy simulations were carried out in order to investigate the influence of unsteady incoming wakes with different profiles on the loss mechanisms of the high lift T106Alinear low-pressure turbine (LPT) cascade. Bars placed upstream of the LPT blade
Florian Hammer   +2 more
doaj   +1 more source

Do wind turbines pose roll hazards to light aircraft? [PDF]

open access: yesWind Energy Science, 2018
Wind energy accounted for 5.6 % of all electricity generation in the United States in 2016. Much of this development has occurred in rural locations, where open spaces favorable for harnessing wind also serve general aviation airports. As such,
J. M. Tomaszewski   +4 more
doaj   +1 more source

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