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Article

Peak and Post-Peak Power Aerodynamics from Phase VI NASA Ames Wind Turbine Data

[+] Author and Article Information
Brandon S. Gerber

General Electric Company GE Energy, GTTC-100D P.O. Box 648 Greenville, SC 29602-0648e-mail: brandon.gerber@ge.com

James L. Tangler

National Renewable Energy Laboratory National Wind Technology Center 1617 Cole Boulevard Golden Colorado 80401-3393e-mail: james_tangler@nrel.gov

Earl P. N. Duque

Northern Arizona University Mechanical Engineering Department P.O. Box 15600 Flagstaff, AZ 86011-5600e-mail: Earl.Duque@NAU.EDU

J. David Kocurek

Computational Methodology Associates 7007 Orchard Hill Ct., Suite 205 Colleyville, TX 76023-6623e-mail: drtomcat@msn.com

J. Sol. Energy Eng 127(2), 192-199 (Apr 25, 2005) (8 pages) doi:10.1115/1.1862260 History: Received June 18, 2004; Revised November 23, 2004; Online April 25, 2005
Copyright © 2005 by ASME
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References

Figures

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Phase VI rotor, taper, and twist distribution
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Force coefficient definition
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Comparison of measured and predicted aerodynamic power, Phase VI rotor
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Phase VI normal force coefficient distribution
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Phase VI tangential force coefficient distribution
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Bound circulation comparison, wind speed=10 m/s, chordwise refinement
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Bound circulation comparison, wind speed=10 m/s, spanwise refinement
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Rotor power comparison, chordwise refinement
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Rotor power comparison, spanwise refinement
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LSWT surface panel distribution
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LSWT prescribed wake model visualization, 7 m/s
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LSWT predicted angle of attack distribution
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Phase VI derived lift coefficient distribution
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Phase VI derived drag coefficient distribution
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Phase VI derived local lift coefficient
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Phase VI derived local drag coefficient
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Comparison of measured and predicted local normal force coefficient
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Comparison of measured and predicted local tangential force coefficient
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LSWT input local airfoil lift coefficient
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LSWT input local airfoil drag coefficient
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Phase VI derived local power per unit span
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LSWT input Cl/Cd versus angle of attack

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