The performance of the NREL Phase VI horizontal axis wind turbine has been studied with a 3-D unsteady Navier-Stokes solver. This solver is third order accurate in space and second order accurate in time, and uses an implicit time marching scheme. Calculations were done for a range of wind conditions from 7 m/s to 25 m/s where the flow conditions ranged from attached flow to massively separated flow. A variety of turbulence models were studied: Baldwin-Lomax Model, Spalart-Allmaras one-equation model, and k-ε two equations model with and without wall corrections. It was found all the models predicted the normal forces and associated bending moments well, but most of them had difficulties in modeling the chord wise forces, power generation, and pitching moments. It was found that the k-ε model with near wall corrections did the best job of predicting most the quantities with acceptable levels of accuracy. Additional studies aimed at transition model development, and grid sensitivity studies in the tip region are deemed necessary to improve the correlation with experiments.
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ASME 2003 Wind Energy Symposium
January 6–9, 2003
Reno, Nevada, USA
Conference Sponsors:
- ASME
ISBN:
1-56347-594-4
PROCEEDINGS PAPER
Evaluation of Turbulence Models for the Prediction of Wind Turbine Aerodynamics
Sarun Benjanirat,
Sarun Benjanirat
Georgia Institute of Technology, Atlanta, GA
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Lakshmi N. Sankar,
Lakshmi N. Sankar
Georgia Institute of Technology, Atlanta, GA
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Guanpeng Xu
Guanpeng Xu
Tennessee State University, Nashville, TN
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Sarun Benjanirat
Georgia Institute of Technology, Atlanta, GA
Lakshmi N. Sankar
Georgia Institute of Technology, Atlanta, GA
Guanpeng Xu
Tennessee State University, Nashville, TN
Paper No:
WIND2003-517, pp. 73-83; 11 pages
Published Online:
February 4, 2009
Citation
Benjanirat, S, Sankar, LN, & Xu, G. "Evaluation of Turbulence Models for the Prediction of Wind Turbine Aerodynamics." Proceedings of the ASME 2003 Wind Energy Symposium. ASME 2003 Wind Energy Symposium. Reno, Nevada, USA. January 6–9, 2003. pp. 73-83. ASME. https://doi.org/10.1115/WIND2003-517
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