Results 11 to 20 of about 194,281 (299)

On the Accuracy of uRANS and LES-Based CFD Modeling Approaches for Rotor and Wake Aerodynamics of the (New) MEXICO Wind Turbine Rotor Phase-III

open access: yesEnergies, 2021
This work presents a comparison study of the CFD modeling with two different turbulence modeling approaches viz. unsteady RANS and LES, on a full-scale model of the (New) MEXICO rotor wind turbine.
Shantanu Purohit   +2 more
doaj   +1 more source

Design and analysis of a wake steering controller with wind direction variability [PDF]

open access: yesWind Energy Science, 2020
Wind farm control strategies are being developed to mitigate wake losses in wind farms, increasing energy production. Wake steering is a type of wind farm control in which a wind turbine's yaw position is misaligned from the wind direction, causing its ...
E. Simley, P. Fleming, J. King
doaj   +1 more source

Multi-model ensemble wake vortex prediction [PDF]

open access: yesAircraft Engineering and Aerospace Technology, 2016
Purpose Wake vortices that are generated by an aircraft as a consequence of lift constitute a potential danger to the following aircraft. To predict and avoid dangerous situations, wake vortex transport and decay models have been developed. Being based on different model physics, they can complement each other with their individual strengths ...
Körner, Stephan, Holzäpfel, Frank
openaire   +2 more sources

Neighborhood Effects in Wind Farm Performance: A Regression Approach

open access: yesEnergies, 2017
The optimization of turbine density in wind farms entails a trade-off between the usage of scarce, expensive land and power losses through turbine wake effects.
Matthias Ritter   +2 more
doaj   +1 more source

Influence of Wake Model Superposition and Secondary Steering on Model-Based Wake Steering Control with SCADA Data Assimilation

open access: yesEnergies, 2020
Methods for wind farm power optimization through the use of wake steering often rely on engineering wake models due to the computational complexity associated with resolving wind farm dynamics numerically.
Michael F. Howland, John O. Dabiri
doaj   +1 more source

Anisotropic double‐Gaussian analytical wake model for an isolated horizontal‐axis wind turbine

open access: yesEnergy Science & Engineering, 2022
An anisotropic double Gaussian (DG) model for analytical wake modeling to predict the streamwise wake velocity behind an isolated non‐yawed horizontal‐axis wind turbine is proposed.
Qidun M. B. Soesanto   +2 more
doaj   +1 more source

VELOCITY FIELD AROUND DARRIEUS WIND TURBINE ROTOR USING ACTUATOR CELL MODEL AND OTHER CFD METHODS

open access: yesTASK Quarterly, 2018
The main purpose of this work is to analyze the usefulness of the active cell model (ACM) developed by the author of this article to estimate the flow field around a single-bladed vertical-axis wind turbine (VAWT) with the Darrieus-type rotor.
KRZYSZTOF ROGOWSKI, KLAUDIA ROGOWSKA
doaj   +1 more source

Comparison of a coupled near- and far-wake model with a free-wake vortex code [PDF]

open access: yesWind Energy Science, 2017
This paper presents the integration of a near-wake model for trailing vorticity, which is based on a prescribed-wake lifting-line model proposed by Beddoes(1987), with a blade element momentum (BEM)-based far-wake model and a 2-D shed vorticity model.
G. Pirrung   +4 more
doaj   +1 more source

Numerical Investigation on the Gas Field Generated by High Pressure Gas Atomizer Focused on Physical Mechanisms of Gas Recirculation and Wake Closure Phenomenon [PDF]

open access: yesArchives of Metallurgy and Materials, 2022
Physical mechanisms of gas recirculation and wake closure were investigated by modeling the gas field generated by High Pressure Gas Atomizer using computational fluid dynamics.
Mingxiang Liu, Shan Zhou
doaj   +1 more source

Using a Virtual Lidar Approach to Assess the Accuracy of the Volumetric Reconstruction of a Wind Turbine Wake

open access: yesRemote Sensing, 2018
Scanning Doppler lidars are the best tools for acquiring 3D velocity fields of full scale wind turbine wakes, whether the objective is a better understanding of some features of the wake or the validation of wake models.
Fernando Carbajo Fuertes   +1 more
doaj   +1 more source

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