Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/7156
Title: NREL VI rotor blade: numerical investigation and winglet design and optimization using CFD
Authors: Elfarra, Monier A.
Sezer-Uzol, Nilay
Akmandor, I. Sinan
Keywords: CFD
optimization
winglets
HAWT
NREL VI
Issue Date: 2014
Publisher: Wiley
Abstract: The main objectives of this study were to aerodynamically design and optimize a winglet for a wind turbine blade by using computational fluid dynamics (CFD) and to investigate its effect on the power production. For validation and as a baseline rotor, the National Renewable Energy Laboratory Phase VI wind turbine rotor blade is used. The Reynolds-averaged Navier-Stokes equations are solved, and k-epsilon Launder-Sharma turbulence model was used. The numerical results have shown a considerable agreement with the experimental data. The genetic algorithm was used as the optimization technique with the help of artificial neural network to reduce the computational cost. In the winglet design, the variable parameters are the cant and twist angles of the winglet and the objective function the torque. Multipoint optimization is carried out for three different operating wind speeds, and a total of 24 CFD cases are run in the design. The final optimized winglet showed around 9% increase in the power production. Copyright (c) 2013 John Wiley & Sons, Ltd.
URI: https://doi.org/10.1002/we.1593
https://hdl.handle.net/20.500.11851/7156
ISSN: 1095-4244
1099-1824
Appears in Collections:Makine Mühendisliği Bölümü / Department of Mechanical Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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