Results 11 to 20 of about 18,297 (267)

AD/RANS Simulations of Wind Turbine Wake Flow Employing the RSM Turbulence Model: Impact of Isotropic and Anisotropic Inflow Conditions

open access: yesEnergies, 2019
The Reynolds-averaged Navier−Stokes (RANS)-based generalized actuator disc method along with the Reynolds stress model (AD/RANS_RSM) is assessed for wind turbine wake simulation.
Linlin Tian   +4 more
doaj   +1 more source

Study on Novel Yaw Error Strategy for Wind Turbines Based on a Multi-Body Dynamics Method

open access: yesFrontiers in Energy Research, 2021
At present, using structural dynamics models is the most commonly used and effective method to simulate the dynamic characteristics of large wind turbine.
Yazhou Wang   +6 more
doaj   +1 more source

Impact of Economic Indicators on the Integrated Design of Wind Turbine Systems

open access: yesApplied Sciences, 2018
This article presents a framework to integrate and optimize the design of large-scale wind turbines. Annual energy production, load analysis, the structural design of components and the wind farm operation model are coupled to perform a system-level ...
Jianghai Wu   +3 more
doaj   +1 more source

The Parametric Modeling and Two-Objective Optimal Design of a Downwind Blade

open access: yesFrontiers in Energy Research, 2021
To cope with the future challenges to the blade that will be introduced by the development of extreme-scale wind turbines, this study focuses on the optimization design of the aerodynamic shape of a downwind blade via the inverse design method. Moreover,
Bofeng Xu   +7 more
doaj   +1 more source

Minimizing Energy Loss by Coupling Optimization of Connection Topology and Cable Cross-Section in Offshore Wind Farm

open access: yesApplied Sciences, 2019
The cable cross section of an offshore wind farm power system is conventionally determined on the basis of the maximum current carrying capacity. However, this criterion cannot be matched and optimized with connection topology, which may lead to a large ...
Long Wang   +3 more
doaj   +1 more source

An Integration Optimization Method for Power Collection Systems of Offshore Wind Farms

open access: yesEnergies, 2019
The traditional power collection system design separately optimizes the connection topology and the cable cross sections, which may result in the inherent shortcoming of lacking the most economical solutions.
Long Wang   +3 more
doaj   +1 more source

Combined Effect of Rotational Augmentation and Dynamic Stall on a Horizontal Axis Wind Turbine

open access: yesEnergies, 2019
Rotational augmentation and dynamic stall have been extensively investigated on horizontal axis wind turbines (HAWTs), but usually as separate topics. Although these two aerodynamic phenomena mainly determine the unsteady loads and rotor performance, the
Chengyong Zhu, Tongguang Wang, Wei Zhong
doaj   +1 more source

Numerical Investigation of Passive Vortex Generators on a Wind Turbine Airfoil Undergoing Pitch Oscillations

open access: yesEnergies, 2019
Passive vortex generators (VGs) are widely used to suppress the flow separation of wind turbine blades, and hence, to improve rotor performance. VGs have been extensively investigated on stationary airfoils; however, their influence on unsteady airfoil ...
Chengyong Zhu   +2 more
doaj   +1 more source

Variable Speed-Variable Pitch Controllers for Aero-Servo-Elastic Simulations of Wind Turbine Support Structures

open access: yesJournal of Fluid Science and Technology, 2011
Site-specific fatigue evaluation of wind turbine support structures has been required by Japanese domestic rule since the revision of the Building Code in 2007.
Shigeo YOSHDA
doaj   +1 more source

Comparative Study of the Aerodynamic Performance of the New MEXICO Rotor under Yaw Conditions

open access: yesEnergies, 2018
The influence of yaw misalignment on the aerodynamic performance of the New MEXICO rotor is investigated using blade-resolved Computational Fluid Dynamics (CFD) approaches with three wind speeds considered at a fixed yaw angle of 30 degrees. The air-load
Yaoru Qian, Zhenyu Zhang, Tongguang Wang
doaj   +1 more source

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