LAPSE:2019.1516
Published Article
LAPSE:2019.1516
Five Megawatt Wind Turbine Power Output Improvements by Passive Flow Control Devices
Unai Fernandez-Gamiz, Ekaitz Zulueta, Ana Boyano, Igor Ansoategui, Irantzu Uriarte
December 10, 2019
The effects of two types of flow control devices, vortex generators (VGs) and Gurney flaps (GFs), on the power output performance of a multi-megawatt horizontal axis wind turbine is presented. To that end, an improved blade element momentum (BEM)-based solver has been developed and BEM-based computations have been carried out on the National Renewable Energy Laboratory (NREL) 5 MW baseline wind turbine. The results obtained from the clean wind turbine are compared with the ones obtained from the wind turbine equipped with the flow control devices. A significant increase in the average wind turbine power output has been found for all of the flow control device configurations and for the wind speed realizations studied in the present work. Furthermore, a best configuration case is proposed which has the largest increase of the average power output. In that case, increments on the average power output of 10.4% and 3.5% have been found at two different wind speed realizations. The thrust force and bending moment in the root of the blade have also been determined and compared with the values of the clean wind turbine. A residual increase in the bending moment of less than 1% has been found.
Keywords
blade element momentum (BEM) model, flow control, gurney flaps (GFs), vortex generators (VGs), wind turbine power
Suggested Citation
Fernandez-Gamiz U, Zulueta E, Boyano A, Ansoategui I, Uriarte I. Five Megawatt Wind Turbine Power Output Improvements by Passive Flow Control Devices. (2019). LAPSE:2019.1516
Author Affiliations
Fernandez-Gamiz U: Department of Nuclear and Fluid Mechanics, University of the Basque Country (UPV/EHU), Nieves Cano, 12, 01006 Vitoria-Gasteiz, Spain [ORCID]
Zulueta E: System Engineering and Automation Control Department, University of the Basque Country (UPV/EHU), Nieves Cano, 12, 01006 Vitoria-Gasteiz, Spain
Boyano A: Department of Mechanical Engineering, University of the Basque Country (UPV/EHU), Nieves Cano, 12, 01006 Vitoria-Gasteiz, Spain
Ansoategui I: Department of Mechanical Engineering, University of the Basque Country (UPV/EHU), Nieves Cano, 12, 01006 Vitoria-Gasteiz, Spain
Uriarte I: Department of Mechanical Engineering, University of the Basque Country (UPV/EHU), Nieves Cano, 12, 01006 Vitoria-Gasteiz, Spain
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Journal Name
Energies
Volume
10
Issue
6
Article Number
E742
Year
2017
Publication Date
2017-05-24
Published Version
ISSN
1996-1073
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Original Submission
Other Meta
PII: en10060742, Publication Type: Journal Article
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LAPSE:2019.1516
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doi:10.3390/en10060742
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Dec 10, 2019
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CC BY 4.0
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Dec 10, 2019
 
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Dec 10, 2019
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Original Submitter
Calvin Tsay
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