In order to provide accurate blade element data for wind turbine design codes, measured three-dimensional (3D) field data must be corrected in terms of the (sectional) angle of attack. A 3D Lifting-Surface Inflow Correction Method (LSIM) has been developed with the aid of a vortex-panel code in order to calculate the relationship between measured local flow angle and angle of attack. The results show the advantages of using the 3D LSIM correction over 2D correction methods, particularly at the inboard sections of the blade where the local flow is affected by post-stall effects and the influence of the blade root. [S0199-6231(00)00604-3]

Issue Section:
Technical Papers
Keywords:
wind turbines, flow measurement
Topics:
Blades, Flow (Dynamics), Inflow, Wind turbines, Vortices, Wind tunnels
1.
Montgomerie, B., 1994, “The Influence of 3D Effects in Lift and Drag on the Performance of a Stalled Horizontal Axis Wind Turbine Rotor,” Proceedings, 8th IEA Symposiums on Aerodynamics of Wind Turbines, Lyngby, Denmark, pp. 101–107.
2.
Wood
,
D. H.
,
1991
, “
A Three Dimensional Analysis of Stall Delay on a Horizontal Axis Wind Turbine
,”
J. Wind Eng. Ind. Aero.
,
37
, pp.
1
–
14
.
3.
Madsen, H. A., 1991, “Aerodynamics of a Horizontal-Axis Wind Turbine in Natural Conditions,” Riso̸ Report M-2903, Riso̸ National Laboratory, Roskilde, Denmark.
4.
Bruining, A., and van Rooij, R.P.J.O.M., 1997, “Two- and Three-Dimensional Aerodynamic Performance of the NLF(1)-0416 Airfoil on a Wind Turbine Blade,” Proceedings, 11th IEA Symposium on Aerodynamics of Wind Turbines, Petten, Netherlands, pp. 59–76.
5.
Snel, H., Houwink, R., Bosschers, J., Piers, W. J., van Bussel, G., and Bruining., A., 1993, “Sectional Prediction of 3-D Effects For Stalled Flow on Rotating Blades and Comparison with Measurements,” Proceedings, 1993 European Community Wind Energy Conference, Travemu¨nde, Germany, pp. 395–399.
6.
Brand, A. J., Dekker, J. W. M., de Groot, C. M., and Spa¨th, M., 1997, “Field Rotor Aerodynamics: The Rotating Case,” Proceedings, 16th ASME Wind Energy Symposium, Reno, NV, pp. 319–327.
7.
Butterfield, C. P., Musial, W. P., and Simms, D. A., 1992, “Combined Experimental Phase I, Final Report,” NREL Report TP-257-4655, National Renewable Energy Laboratories, Golden, CO.
8.
Kocurek, D., 1987, “Lifting Surface Performance Analysis for Horizontal Axis Wind Turbines,” NREL Subcontract Report STR-217-3163, National Renewable Energy Laboratories, Golden, CO.
9.
Whale, J., and Selig, M. S., 1999, “Lifting-Surface Inflow Correction Method (LSIM), User’s Manual,” University of Illinois at Urbana-Champaign, Dept. of Aeronautical and Astronautical Engineering, AAE 99-11, UILU ENG 99-05-11, Urbana, IL.
10.
Whale, J., and Selig, M. S., 1999, “LSIM: A Lifting-Surface Inflow Correction Method,” University of Illinois at Urbana-Champaign, Dept. of Aeronautical and Astronautical Engineering, AAE 99-12, UILU ENG 99-05-12, Urbana, IL.
11.
Schepers, J. G., 1997, “Final Report of IEA Annex XIV: Field Rotor Aerodynamics,” ECN Report ECN-C-97-027, Netherlands Energy Research Foundation, Petten, Netherlands.
12.
Simms, D. A., Robinson, M. S., Hand, M. M., and Fingersh, L. J., 1996, “Characterization and Comparison of Baseline Aerodynamic Performance of Optimally-Twisted versus Non-Twisted Blades,” 1996 Proceedings, ASME Energy-Source Technology Conference, Houston, TX, pp. 143–148.
13.
Du, Z., and Selig, M. S., 1998, “3-D Stall-Delay Model for Horizontal Axis Wind Turbine Performance Prediction,” Proceedings, 17th ASME Wind Energy Symposium, Reno, NV, pp. 9–19.
14.
Bjo¨rck, A., Ronsten, G., and Montgomerie, B., 1995, “Aerodynamic Section Characteristics of a Rotating and Non-rotating 2.375m Wind Turbine Blade,” FFA Report TN 1995-03, The Aeronautical Research Institute of Sweden, Bromma, Sweden.
Copyright © 2000
 by ASME
You do not currently have access to this content.