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3D stall delay effect modeling and aerodynamic analysis of swept-blade wind turbine
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1. S. M. Larwood, Dynamic Analysis Tool Development for Advanced Geometry Wind Turbine Blades (University of California, 2009).
2. R. Amano and R. Malloy, “CFD analysis on aerodynamic design optimization of wind turbine rotor blades,” World Acad. Sci. Eng. Technol. 60, 7175 (2009).
3. K. Suzuki, S. Schmitz, and J.-J. Chattot, Analysis of a Swept Wind Turbine Blade Using a Hybrid Navier–Stokes/Vortex-Panel Model, Computational Fluid Dynamics 2010 (Springer, 2011), pp. 213218.
4. T. Maggio, F. Grasso, and D. Coiro, Numerical Study on Performance of Innovative Wind Turbine Blade for Load Reduction, EWEA, EWEC2011 (Bruxelles, 2011), pp.1417.
5. D. R. Verelst and T. J. Larsen, Load Consequences When Sweeping Blades-A Case Study of a 5 MW Pitch Controlled Wind Turbine (Danmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi, 2010).
6. H. Snel, R. Houwink, J. Bosschers, and E. C. Nederland, Sectional Prediction of Lift Coefficients on Rotating Wind Turbine Blades in Stall (Netherlands Energy Research Foundation, 1994).
7. P. Chaviaropoulos and M. O. L. Hansen, “Investigating three-dimensional and rotational effects on wind turbine blades by means of a quasi-3D Navier-Stokes solver,” J. Fluids Eng. 122, 330336 (2000).
8. Z. Du and M. Selig, “A 3-D Stall-Delay Model for Horizontal Axis Wind Turbine Performance Prediction. AIAA-98-0021,” in 36th AIAA Aerospace Sciences Meeting and Exhibit, 1998 ASME Wind Energy Symposium Reno (NV, USA, 1998).
9. J. Corrigan and J. Schillings, “Empirical Model for Stall Delay Due to Rotation,” in American Helicopter Society Aeromechanics Specialists Conference (San Francisco, CA, 1994).
10. C. Lindenburg, “Investigation into rotor blade aerodynamics,” Energy research Centre of the Netherlands, Report ECN-C–0–025, 2003.
11. G. P. Corten and E. C. Nederland, “Inviscid Stall Model,” in Proceedings of the European Wind Energy Conference: Netherlands Energy Research Foundation (2001), pp. 466469.
12. J. G. Leishman and T. S. Beddoes, “A generalised model for airfoil unsteady aerodynamic behaviour and dynamic stall using the indicial method,” in 42th Annual Forum of the American Helicopter Society (Washington, 1986), pp. 243265.
13. C. Lindenburg, “Investigation into rotor blade aerodynamics,” Netherlands Society for Energy and the Environment, Paper ECN-C-03-025, 2003.
14. W. Sheng, R. A. M. D. Galbraith, and F. N. Coton, “On the S809 airfoil's unsteady aerodynamic characteristics,” Wind Energy 12, 752767 (2009).
15. M. M. Hand, D. Simms, L. Fingersh, D. Jager, and J. Cotrell, Unsteady Aerodynamics Experiment Phase V: Test Configuration and Available Data Campaigns (National Renewable Energy Laboratory, 2001).
16. S. Guntur, C. Bak, and N. N. Sørensen, “Analysis of 3D Stall Models for Wind Turbine Blades Using Data from the MEXICO Experiment,” in 13th International conference on Wind Engineering, ICWE (Amsterdam Holland, 2012).
17. S. Schreck, T. Sant, and D. Micallef, “Rotational Augmentation Disparities in the Mexico and Uae Phase VI Experiments,” in 3rd Torque 2010 The Science of making Torque from Wind Conference (FORTH, Heraklion, Crete, Greece, 2010).
18. J. G. Leishman, Principles of Helicopter Aerodynamics (Cambridge University Press, 2006).
19. M. Ramasamy and J. G. Leishman, “A generalized model for transitional blade tip vortices,” J. Am. Helicopter Soc. 51, 92103 (2006).
20. M. Ramasamy and J. G. Leishman, “A reynolds number-based blade tip vortex model,” J. Am. Helicopter Soc. 52, 214223 (2007).
21. V. Okulov, “On the stability of multiple helical vortices,” J. Fluid Mech. 521, 319342 (2004).
22. Y. Fukumoto and V. Okulov, “The velocity field induced by a helical vortex tube,” Phys. Fluids 17, 107101 (2005).

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For Horizontal Axis Wind Turbine (HAWT), the aerodynamic performance of the blade will become different when the geometry of the blade is bent backward in the rotor plane, which is usually called backward swept blade. In this paper the aerodynamic performance of backward swept-blade rotor will be analyzed by Free Wake Lifting Line Model and the corresponding wake vortexes are discussed. In order to make it possible to apply lifting line method, a proper 3D effect modification model is needed to be added in the computation. First, a new 3D stall delay model is established, named Inviscid Stall Delay Model (ISDM), which is derived from the simplified Navier-Stokes (N-S) equations. In the model, we treat the stall delay effects differently by the delay of the separation point on the airfoil, and aim to capture the further negative pressure reduction in the separation area. Second, a Free Wake Lifting Line Model is created and it is validated by the experimental results of the National Renewable Energy Laboratories (NREL) Phase VI and Model Experiments in the Controlled Condition (MEXICO) wind turbine blades. Third, based on the blade of the NREL Phase VI, a backward swept-blade is constructed, which has the same sweeping area as the straight blade. After that the aerodynamic performance of the swept-blade is explored by the lifting line code. The development of the wake vortexes and its influence on the swept-blade are analyzed. It can be concluded that the swept geometry leads to a periodic lag of the circumferential positions of the shedding vortexes, while its axial components are almost unchanged. The swept geometry is an important influence factor for the induced velocities distribution in the rotor plane. Besides, it should be noticed that the optimization of the swept-blade is important for its aerodynamic performance analysis which is needed to be discussed in the future.


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Scitation: 3D stall delay effect modeling and aerodynamic analysis of swept-blade wind turbine