LAPSE:2019.0782
Published Article
LAPSE:2019.0782
Numerical Analysis of the Effects of Rotating Wind Turbine Blades on the Aerodynamic Forces Acting on Tower
Takaaki Kono, Satoshi Nebucho, Tetsuya Kogaki, Takahiro Kiwata, Shigeo Kimura, Nobuyoshi Komatsu
July 26, 2019
We have investigated the effects of the rotating blades of an upwind-type three-blade horizontal-axis wind turbine (HAWT) on the basic characteristics of aerodynamic forces acting on its tower by conducting improved delayed detached-eddy simulations (DESs). Three tip-speed ratios were considered for the operating conditions of the HAWT: λ = 3 (low), λ = 6 (optimum), and λ = 10 (high). The diversion of the flow approaching the tower by the rotating blades and the low-pressure region that formed downwind of the blades significantly affected the aerodynamic forces acting on the tower. For example, the azimuth angle around the tower at which the pressure reached a maximum at each height shifted significantly in the direction of the movement of the blade passing the tower because of the diversion of the flow by the blades. Fluctuations in the lift force of the tower were significantly larger than those in its drag force because of the low-pressure region downwind of the blades.
Keywords
aerodynamic force, blade-tower interaction (BTI), computational fluid dynamics (CFD), detached-eddy simulation (DES), horizontal-axis wind turbine (HAWT), tower
Suggested Citation
Kono T, Nebucho S, Kogaki T, Kiwata T, Kimura S, Komatsu N. Numerical Analysis of the Effects of Rotating Wind Turbine Blades on the Aerodynamic Forces Acting on Tower. (2019). LAPSE:2019.0782
Author Affiliations
Kono T: Institute of Science and Engineering, Kanazawa University, Kanazawa 920-1192, Japan
Nebucho S: Institute of Science and Engineering, Kanazawa University, Kanazawa 920-1192, Japan [ORCID]
Kogaki T: National Instiute of Advanced Industrial Science and Technology, Koriyama 963-0298, Japan
Kiwata T: Institute of Science and Engineering, Kanazawa University, Kanazawa 920-1192, Japan
Kimura S: Institute of Science and Engineering, Kanazawa University, Kanazawa 920-1192, Japan
Komatsu N: Institute of Science and Engineering, Kanazawa University, Kanazawa 920-1192, Japan
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Journal Name
Energies
Volume
10
Issue
1
Article Number
E121
Year
2017
Publication Date
2017-01-19
Published Version
ISSN
1996-1073
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Original Submission
Other Meta
PII: en10010121, Publication Type: Journal Article
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LAPSE:2019.0782
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doi:10.3390/en10010121
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Jul 26, 2019
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Jul 26, 2019
 
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Jul 26, 2019
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Calvin Tsay
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