An experimental study was carried out to investigate the aeromechanics and wake characteristics of dual-rotor wind turbines (DRWTs) in either co-rotating or counter-rotating configuration, in comparison to those of a conventional single-rotor wind turbine (SRWT). The experiments were performed in a large-scale aerodynamic/atmospheric boundary layer (AABL) wind tunnel, available at Iowa State University with the oncoming atmospheric boundary-layer (ABL) airflows under neutral stability conditions. In addition to measuring the power output performance of DRWT and SRWT models, static and dynamic wind loads acting on those turbine models were also investigated. Furthermore, a high-resolution digital particle image velocimetry (PIV) system was used to quantify the flow characteristics in the near wakes of the DRWT and SRWT models. The detailed wake-flow measurements were correlated with the power outputs and wind-load measurement results of the wind-turbine models to elucidate the underlying physics to explore/optimize design of wind turbines for higher power yield and better durability.
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April 2016
Research-Article
Experimental Investigation on the Wake Characteristics and Aeromechanics of Dual-Rotor Wind Turbines
Ahmet Ozbay,
Ahmet Ozbay
Department of Aerospace Engineering,
Iowa State University,
2271 Howe Hall, Room 1200,
Ames, IA 50011-2271
Iowa State University,
2271 Howe Hall, Room 1200,
Ames, IA 50011-2271
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Wei Tian,
Wei Tian
Department of Aerospace Engineering,
Iowa State University,
2271 Howe Hall, Room 1200,
Ames, IA 50011-2271
e-mail: tianwei@sjtu.edu.cn
Iowa State University,
2271 Howe Hall, Room 1200,
Ames, IA 50011-2271
e-mail: tianwei@sjtu.edu.cn
Search for other works by this author on:
Hui Hu
Hui Hu
Department of Aerospace Engineering,
Iowa State University,
2271 Howe Hall, Room 1200,
Ames, IA 50011-2271
e-mail: huhui@iastate.edu
Iowa State University,
2271 Howe Hall, Room 1200,
Ames, IA 50011-2271
e-mail: huhui@iastate.edu
Search for other works by this author on:
Ahmet Ozbay
Department of Aerospace Engineering,
Iowa State University,
2271 Howe Hall, Room 1200,
Ames, IA 50011-2271
Iowa State University,
2271 Howe Hall, Room 1200,
Ames, IA 50011-2271
Wei Tian
Department of Aerospace Engineering,
Iowa State University,
2271 Howe Hall, Room 1200,
Ames, IA 50011-2271
e-mail: tianwei@sjtu.edu.cn
Iowa State University,
2271 Howe Hall, Room 1200,
Ames, IA 50011-2271
e-mail: tianwei@sjtu.edu.cn
Hui Hu
Department of Aerospace Engineering,
Iowa State University,
2271 Howe Hall, Room 1200,
Ames, IA 50011-2271
e-mail: huhui@iastate.edu
Iowa State University,
2271 Howe Hall, Room 1200,
Ames, IA 50011-2271
e-mail: huhui@iastate.edu
1Corresponding author.
Contributed by the Turbomachinery Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received July 15, 2015; final manuscript received August 10, 2015; published online October 13, 2015. Editor: David Wisler.
J. Eng. Gas Turbines Power. Apr 2016, 138(4): 042602 (15 pages)
Published Online: October 13, 2015
Article history
Received:
July 15, 2015
Revised:
August 10, 2015
Citation
Ozbay, A., Tian, W., and Hu, H. (October 13, 2015). "Experimental Investigation on the Wake Characteristics and Aeromechanics of Dual-Rotor Wind Turbines." ASME. J. Eng. Gas Turbines Power. April 2016; 138(4): 042602. https://doi.org/10.1115/1.4031476
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