Results 31 to 40 of about 2,612 (267)
Changing the rotational direction of a wind turbine under veering inflow: a parameter study [PDF]
Wind Energy Science, 2020 All current-day wind-turbine blades rotate in clockwise direction as seen from an upstream perspective. The choice of the rotational direction impacts the wake if the wind profile changes direction with height.
A. Englberger +3 more
doaj +1 more source
Modeling lateral plume deflection in the wake of an elongated building
Atmospheric Environment, 2020 The plume dispersion model AERMOD provides an efficient method for modeling ground-level pollutant concentrations in wakes of buildings. In recent years, several studies have shown that the downwash algorithms within AERMOD often perform poorly in certain applications.
E M, Monbureau +3 more
openaire +3 more sources
Aerospace, 2023 An electrically controlled rotor (ECR) is a kind of swashplateless rotor that implements the primary control via the trailing-edge flap system instead of a swashplate and demonstrates great potential in vibration reduction and noise alleviation.
Lingzhi Wang, Taoyong Su
doaj +1 more source
Blade planform design optimization to enhance turbine wake control
Wind Energy, 2022 This study considers optimizing the planform of wind turbine blades to ultimately enhance wind plant controls, namely, wake steering strategies. Adjoint‐enabled unsteady actuator line simulations are carried out to obtain gradients for optimization of ...
Jeffery Allen +4 more
doaj +1 more source
Effect of the vertical wake deflection on the response of a 12MW semisubmersible FWT
Journal of Physics: Conference Series, 2023 Abstract The need to understand the interaction of floating wind turbines operating in the marine boundary layer with other surrounding turbines is of increasing importance as wind farms and rotor sizes get larger. For low wind speed conditions, the wake deflects upwards due to the floating wind turbine built-in rotor tilt and the ...
I Rivera-Arreba +2 more
openaire +1 more source
Modelling Yawed Wind Turbine Wakes: Extension of a Gaussian-Based Wake Model
Energies, 2021 Yaw-based wake steering control is a potential way to improve wind plant overall performance. For its engineering application, it is crucial to accurately predict the turbine wakes under various yawed conditions within a short time.
De-Zhi Wei, Ni-Na Wang, De-Cheng Wan
doaj +1 more source
The curled wake model: a three-dimensional and extremely fast steady-state wake solver for wind plant flows [PDF]
Wind Energy Science, 2021 Wind turbine wake models typically require approximations, such as wake superposition and deflection models, to accurately describe wake physics. However, capturing the phenomena of interest, such as the curled wake and interaction of multiple wakes, in ...
L. A. Martínez-Tossas +7 more
doaj +1 more source
Experimental analysis of the wake behind a small wind-turbine model in yaw
, 2023 In this work we study the wake of a yawed wind-turbine model immersed in an atmospheric boundary layer (ABL). The ABL is replicated in the wind tunnel by means of a barrier-spires and distributed roughness configuration and is representative of a rural ...
Micheletto, D. +8 more
core +1 more source
Why the Coriolis force turns a wind farm wake clockwise in the Northern Hemisphere [PDF]
Wind Energy Science, 2017 The interaction between the Coriolis force and a wind farm wake is investigated by Reynolds-averaged Navier–Stokes simulations, using two different wind farm representations: a high roughness and 5 × 5 actuator disks.
M. P. van der Laan, N. N. Sørensen
doaj +1 more source
A simple vortex model applied to an idealized rotor in sheared inflow [PDF]
Wind Energy Science, 2023 A simple analytical vortex model is presented and used to study an idealized wind turbine rotor in uniform and sheared inflow, respectively. Our model predicts that 1D momentum theory should be applied locally when modelling a non-uniformly loaded rotor ...
M. Gaunaa, N. Troldborg, E. Branlard
doaj +1 more source