Tawit Chitsomboon
School of Mechanical Engineering, Institute of Engineering, Suranaree University of Technology, Nakornratchasima, Thailand
Chalothorn Thamthæ
School of Mechanical Engineering, Institute of Engineering, Suranaree University of Technology, Nakornratchasima, Thailand
Ladda ner artikel
http://dx.doi.org/10.3384/ecp110574114Ingår i: World Renewable Energy Congress - Sweden; 8-13 May; 2011; Linköping; Sweden
Linköping Electronic Conference Proceedings 57:9, s. 4114-4120
Publicerad: 2011-11-03
ISBN: 978-91-7393-070-3
ISSN: 1650-3686 (tryckt), 1650-3740 (online)
The eddy viscosity in the buffer zones of the turbulent boundary layers was limited to investigate its effects on the points of incipient separation for flows over wind turbine airfoils. Thek – ? SST turbulence model was used as the base model within the framework of a finite volume CFD scheme. Flows over two different wind turbine airfoils were computed and compared with experimental results. Much improvements in the lift and drag coefficients in the stall regions were observed when compared with the results of the original turbulence model.
Turbulence model; k?- SST turbulence model; Airfoil stall prediction; Stall in wind turbine
[1] P. Catalano and M. Amato; An evaluation of RANS turbulence modeling for aerodynamics; Aerospace Science and Technology 7; 2003; pp. 493-509.
doi: 10.1016/S1270-9638(03)00061-0.
[2] D.J. Mavriplis; Three-dimensional high-lift analysis using a parallel unstructured multigrid solver. AIAA Paper 98-2619; June 1998.
[3] C.L. Rumsey; T.B. Gatski; Recent turbulence model advances applied to multi element airfoil computations; J Aircraft 38(5); 2001; pp. 904–10
doi: 10.2514/2.2850.
[4] Wolfe; W.P. and Ochs; S.S. “CFD Calculations of S809 Aerodynamic Characteristics;” AIAA-97-0973; Proceeding 35th AIAA Aerospace Sciences Meeting and Exhibit; Reno 1997
doi: 10.2514/6.1997-973.
[5] Bertagnolio; F.; Sørensen; N.N.; and Johansen; J. (2006; December). Status for the Two-Dimensional Navier-Stokes Solver EllipSys2D. Risø-R-1282(EN); Risø National Laboratory
[6] Chow; R. and van Dam; C.P.; Computational Investigations of Deploying Load Control Microtabs on a Wind Turbine Airfoil; AIAA-2007-1018
[7] Rumsey; C.L.; Ying; S.X.; (2002). Prediction of high lift: review of present CFD capability. Progress in Aerospace Sciences 38: pp. 145–180
doi: 10.1016/S0376-0421(02)00003-9.
[8] Langtry; R.B.; Gola; J.; and Menter; F.R. (2006). Predicting 2D airfoil and 3D wind turbine rotor performance using a transition model for general CFD codes. 44th AIAA Aerospace Sciences Meeting and Exhibit; Reno 2006; AIAA 2006-0395
[9] Jones; W. P.; and Launder B. E.; The prediction of Laminarization with a Two-Equation Model of Turbulence; International Journal of Heat and Mass Transfer; Vol. 15; 1972; pp. 301-314
doi: 10.1016/0017-9310(72)90076-2.
[10] Wilcox; D. C.; (1993).Turbulence Modeling for CFD. DCW Industries; Inc.; 5354 Palm Drive; La Cafiada; Calif.
[11] Menter; F.R. (1993). Zonal two equation ?-k turbulence models for aerodynamic flows. AIAA Paper 93-2906
[12] Menter; F.R. (1994; Nov). Two-equation eddy viscosity turbulence models for engineering applications. AIAA J 32:1299-1310.
doi: 10.2514/3.12149.
[13] Fluent 6.3 User manual
[14] Franck Bertagnolio; Niels S_rensen and Jeppe Johansen; Status for the Two-Dimensional Navier-Stokes Solver EllipSys2D; Risø–R–1282(EN)
[15] Cummings; R.M.; Forsythe; J.R.; Morton; S.A.; and Squires; K.D.; (2003). Computational challenges in high angle of attack flow prediction. Progress in Aerospace Sciences; 39:369–384. doi:10.1016/S0376-0421(03)00041-1
doi: 10.1016/S0376-0421(03)00041-1.
[16] Somers; D.M.; (1997). Design and experimental results for the S809 airfoil. Airfoils Inc.; State College; PA. NREL/SR-440-6918
doi: 10.2172/437668.
[17] Bertagnolio F.; Sørensen N N.; Johansen J.; and Fuglsang P. (2001). Wind Turbine Airfoil Catalog; Risø-R-1280(EN); Risø National Laboratory; August 2001.
