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ASME Press Select Proceedings
Inaugural US-EU-China Thermophysics Conference-Renewable Energy 2009 (UECTC 2009 Proceedings)Available to Purchase
Editor
Y. Tao
Y. Tao
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C. Ma
C. Ma
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ISBN:
9780791802908
No. of Pages:
1200
Publisher:
ASME Press
Publication date:
2009

Currently most of the aerodynamic shape design of wind turbine blades is still based on the blade element-momentum (BEM) theory with 2D airfoil data from wind tunnel experiments or CFD predictions. 3D stall delay phenomenon happens, resulting in great difference of airfoil loading from the 2D data. A general model for 3D stall delay, related with all the possible parameters, are proposed by use of the Πtheorem Based on NREL Phase VI experimental data, comparisons and analysis of two 3D stall delay models, Chaviaropoulos & Hansen and Du & Selig models are made. The model parameters in Chaviaropoulos & Hansen models are systematically tested. A correction for improving this model is put forward and compared with the experimental data.

Abstract
Introduction
Nomenclature
Review of the NREL Phase VI Experiment
Review of Stall Delay Models
Comparison of These Two Models
Parametric Tests of Chaviaropoulos & Hansen Model
Conclusion
Acknowledgments
References
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