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TECHNICAL PAPERS

Investigating Three-Dimensional and Rotational Effects on Wind Turbine Blades by Means of a Quasi-3D Navier-Stokes Solver

[+] Author and Article Information
P. K. Chaviaropoulos

CRES-Center for Renewable Energy Sources, 19th km Marathonos Ave., 190 09 Pikermi Attiki, Greece

M. O. L. Hansen

Department of Energy Engineering, Fluid Mechanics Section, Technical University of Denmark, bldg. 404, DK-2800 Lyngby, Denmark

J. Fluids Eng. 122(2), 330-336 (Feb 22, 2000) (7 pages) doi:10.1115/1.483261 History: Received October 03, 1997; Revised February 22, 2000
Copyright © 2000 by ASME
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References

Figures

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Velocity triangle at the (z,Θ) plane
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Influence of the c/r ratio on (a) the pressure and (b) the skin friction coefficient of the NACA 0015 airfoil in laminar flow. Re=400, α=15 degrees, twist=0 degrees.
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Laminar flow around NACA 0015, Re=400, α=15 degrees, twist=0 degrees. Contour plots of the in-plane (W2D) velocity magnitude, (a) 2-D flow, (b) c/r=0.3. Contour step=0.1.
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Laminar flow around NACA 0015, Re=400, α=15 degrees, twist=0 degrees. Contour plot of the radial velocity component Wr. Contour step=0.1.
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2-D and quasi-3D load coefficients versus angle of attack, (a) CI, (b) Cd, and (c) Cm. NACA 63-2-15, Re=2×106, fully turbulent flow, twist=0 degrees.
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Influence of the c/r ratio on (a) the pressure and (b) the skin friction coefficients. NACA 63-2-15, Re=2 mil, α=15 degrees, fully turbulent flow. Twist=0 degrees.
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Measured and computed electrical power for a Bonus 300 Combi wind turbine using “pure” 2-D airfoil data and using the same data corrected for 3-D rotational effects, Eqs. (18) and (19)

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