Results 101 to 110 of about 10,215 (221)
Analytical Modeling of Wind Farms: A New Approach for Power Prediction
Energies, 2016 Wind farm power production is known to be strongly affected by turbine wake effects. The purpose of this study is to develop and test a new analytical model for the prediction of wind turbine wakes and the associated power losses in wind farms.
Amin Niayifar, Fernando Porté-Agel
doaj +1 more source
Comparison of 2nd generation LiDAR wind measurement technique with CFD numerical modelling [PDF]
, 2012 With the rapid increase in both on and offshore wind turbine deployment there is a requirement for a better understanding of the flow field in which such devices are deployed.
Butler, Jonathan, Quail, Francis
core
Toward Development of a Stochastic Wake Model: Validation Using LES and Turbine Loads
Energies, 2017 Wind turbines within an array do not experience free-stream undisturbed flow fields. Rather, the flow fields on internal turbines are influenced by wakes generated by upwind unit and exhibit different dynamic characteristics relative to the free stream ...
Jae Sang Moon +4 more
doaj +1 more source
On the wake of a Darrieus turbine [PDF]
, 1981 The theory and experimental measurements on the aerodynamic decay of a wake from high performance vertical axis wind turbine are discussed. In the initial experimental study, the wake downstream of a model Darrieus rotor, 28 cm diameter and a height of ...
Base, T. E. +3 more
core +1 more source
Numerical Computations of Wind Turbine Wakes
, 2007 Numerical simulations of the Navier-Stokes equations are performed to achieve a better understanding of the behaviour of wakes generated by wind turbines.
Stefan Ivanell +2 more
openaire +2 more sources
Monopile-induced turbulence and sediment redistribution form visible wakes in offshore wind farms
Frontiers in Earth ScienceOffshore wind farms are becoming an increasingly common feature in the marine environment as a renewable energy source. There is a growing body of evidence on the effects of wind farms on the seabed and its organisms.
Lewis P. Bailey +12 more
doaj +1 more source
Determination of wind turbine far wake using actuator disk [PDF]
, 2014 The growth in size of wind turbines over the last years is significant. The rotor diameter becomes somehow comparable to atmospheric boundary layer at the land surface. In this case the assumption of uniform velocity of upcoming wind cannot be valid. The
AMER, Rodeyna +2 more
core +3 more sources
umerical simulation of atmospheric boundary layer and wakes of horizontal-axis wind turbines
Journal of Energy in Southern Africa, 2017 Simulations of wind turbine wakes are presented in this paper using the three-dimensional Reynolds-Averaged Navier-Stokes (RANS) equations employing the k-e turbulence model appropriately modified for the atmospheric flows.
Ali M. AbdelSalam, Ramalingam Velraj
doaj +1 more source
Wind-Turbine Wakes in a Convective Boundary Layer: A Wind-Tunnel Study [PDF]
, 2018 Thermal stability changes the properties of the turbulent atmospheric boundary layer, and in turn affects the behaviour of wind-turbine wakes. To better understand the effects of thermal stability on the wind-turbine wake structure, wind-tunnel ...
Markfort, Corey +2 more
core
AtmosphereThis study proposes a microscale flow model to estimate mean wind speed, fluctuating wind speed and wind direction over complex terrain considering the effects of topography, atmospheric stability, and turbine wakes.
Atsushi Yamaguchi +2 more
doaj +1 more source