Results 61 to 70 of about 15,291 (184)
Short-range wakefields in an L-shaped corrugated structure
Physical Review Accelerators and Beams, 2023 We present analytical and numerical studies of short-range wakefields in an L-shaped corrugated structure. This structure has variable streaking polarization and the quadrupole wakefield component is suppressed when the beam moves with equal distances to
Weilun Qin +2 more
doaj +1 more source
Comparison of Analytical Wake Models with Wind Tunnel Data
Journal of Physics: Conference Series, 2019 Abstract In this paper a comparison between the wake velocity, wake deflection and turbulence intensity predictions of several wake models was carried out against wind tunnel data obtained with a state-of-the-art scaled wind turbine model.
F Campagnolo +3 more
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Effect of dynamic stall on the aerodynamics of vertical-axis wind turbines
, 2011 Accurate simulations of the aerodynamic performance of vertical-axis wind turbines pose a significant challenge for computational fluid dynamics methods.
Richard E. Brown +4 more
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A survey of two analytical wake models for crosswind kite power systems
Physics of Fluids, 2022 This paper presents two novel analytical wake models for crosswind kite power systems. One is developed based on the continuity equation, and the other is based on both the continuity and momentum equations. For each model, equations for the wake flow speed and the wake shape are obtained through a rigorous theoretical approach.
Mher M. Karakouzian +2 more
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Energies, 2020 The wake of a wind turbine is a crucial factor that decreases the output of downstream wind turbines and causes unsteady loading. Various wake models have been developed to understand it, ranging from simple ones to elaborate models that require long ...
Kyoungboo Yang
doaj +1 more source
Curled-Skewed Wakes behind Yawed Wind Turbines Subject to Veered Inflow
Energies, 2022 This work presents a new engineering analytical model that predicts the effect of both the turbine yaw misalignment and the inflow wind veer on the wake flow distribution downwind of a wind turbine.
Mohammadreza Mohammadi +6 more
doaj +1 more source
, 2016 Extensive power losses of wind farm have been witnessed due to the wake interactions between wind turbines. By applying analytical wake models which describe the wind speed deficits in the wake quantitatively, the power losses can be regained to a large ...
Wang, Longyan +3 more
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Combined Effect of ABL Profile and Rotation in Wind Turbine Wakes: New Three-Dimensional Wake Model
EnergiesThe combination of the atmospheric boundary layer (ABL) profile and the rotation of wind turbine wakes leads to lateral and vertical displacements of the wake center and to changes in the wake diameter, which are not taken into account by conventional ...
José A. Martinez-Trespalacios +4 more
doaj +1 more source
A Simplified Free Vortex Wake Model of Wind Turbines for Axial Steady Conditions
Applied Sciences, 2018 A simplified free vortex wake (FVW) model called the vortex sheet and ring wake (VSRW) model was developed to rapidly calculate the aerodynamic performance of wind turbines under axial steady conditions.
Bofeng Xu +4 more
doaj +1 more source
Comparison of modular analytical wake models to the Lillgrund wind plant
Journal of Renewable and Sustainable Energy, 2020 Efficient and accurate wake models are required for wind plant performance modeling and the suite of engineering processes that support wind plant layout, control, and monitoring. Although many analytical and engineering wake models with low computational costs have been proposed, their ability to represent the power production of large wind plants in ...
Nicholas Hamilton +4 more
openaire +2 more sources