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Stochastic Wake Modelling Based on POD Analysis [PDF]

open access: yesEnergies, 2018
In this work, large eddy simulation data is analysed to investigate a new stochastic modeling approach for the wake of a wind turbine. The data is generated by the large eddy simulation (LES) model PALM combined with an actuator disk with rotation ...
David Bastine   +3 more
doaj   +5 more sources

Time-Varying Kelvin Wake Model and Microwave Velocity Observation [PDF]

open access: yesSensors, 2020
In the synthetic aperture radar (SAR) imaging of ship-induced wakes, it is difficult to obtain the Doppler velocity of a Kelvin wake due to the lack of time-varying wake models and suitable radar equipment.
Jie Niu, Xingdong Liang, Xin Zhang
doaj   +2 more sources

Towards a Simplified DynamicWake Model Using POD Analysis [PDF]

open access: yesEnergies, 2015
We apply a modified proper orthogonal decomposition (POD) to large eddy simulation data of a wind turbine wake in a turbulent atmospheric boundary layer. The turbine is modeled as an actuator disk.
David Bastine   +3 more
doaj   +4 more sources

Wind Turbine Wake Regulation Method Coupling Actuator Model and Engineering Wake Model

open access: yesEnergies
The wake effect is one of the main factors affecting the power generation of wind farms. Wake regulation is often used to reduce the wake interference between wind turbines.
Kuichao Ma   +5 more
doaj   +2 more sources

Applicability of WorldCover in Wind Power Engineering: Application Research of Coupled Wake Model Based on Practical Project

open access: yesEnergies, 2023
This paper discusses how the incorporation of high-resolution ground coverage dataset ESA WorldCover into a wind flow field and wake simulation calculation, as well as the use of the coupled wake model for wind farm output simulation, can improve the ...
Jing Zhang   +6 more
doaj   +1 more source

Modelling Yawed Wind Turbine Wakes: Extension of a Gaussian-Based Wake Model [PDF]

open access: yesEnergies, 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. In this work, a two-dimensional analytical model is proposed for far wake modeling under yawed conditions by taking the ...
De-Zhi Wei, Ni-Na Wang, De-Cheng Wan
openaire   +2 more sources

Three-Dimensional LiDAR Wake Measurements in an Offshore Wind Farm and Comparison with Gaussian and AL Wake Models

open access: yesEnergies, 2021
Huaneng Rudong 300 MW offshore wind farm project is located in eastern China. The wake effect is one of the major concerns for wind farm operators, as all 70 units are plotted in ranks, and the sea surface roughness is low.
Xin Liu   +5 more
doaj   +1 more source

Research on the Safe Separation of Aircraft Approaching and Departing from Cross-runway

open access: yesHangkong gongcheng jinzhan, 2022
The cross-runway is still a new runway configuration in my country,and its operation safety and efficiency need to establish relevant standards and evaluation methods,and establish a safe separation for the possible track crossing of the approaching ...
HU Minghua   +3 more
doaj   +1 more source

Large-eddy simulation of a 15 GW wind farm: Flow effects, energy budgets and comparison with wake models

open access: yesFrontiers in Mechanical Engineering, 2023
Planned offshore wind farm clusters have a rated capacity of more than 10 GW. The layout optimization and yield estimation of wind farms is often performed with computationally inexpensive, analytical wake models.
Oliver Maas
doaj   +1 more source

A non-symmetric Gaussian wake model for lateral wake-to-wake interactions

open access: yesJournal of Physics: Conference Series, 2023
Abstract In this paper, we propose a new non-symmetric Gaussian wake model, which allows for different lateral expansions on the two sides of a wake to account for its interaction with neighbouring wakes. The proposed model is formulated following classical speed-deficit assumptions and momentum conservation.
A Vad, S Tamaro, C L Bottasso
openaire   +1 more source

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