Abstract
The aerodynamic behavior of wind turbines is strongly influenced by the turbulence level. However, the design of the rotor blades is usually based on experimental results of airfoils operating under laminar conditions. This leads to great uncertainties in the design process, which in turn make wind turbines less reliable and cost-effective. In this work a DES numerical study of the flow around a Wortmann FX 79-W-151A airfoil is performed for different turbulence intensities. Special attention is paid to the resulting loads. The simulations are then compared and validated with already available load measurements. The aim of this work is on one hand to gain a better understanding of the aerodynamics of an airfoil working in a turbulent flow. On the other hand, it is also of great interest to see up to which degree the numerical simulations are able to predict the force coefficients.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Bertagnolio, F., Sørensen, N., Johansen, J.: Profile catalogue for airfoil sections based on 3D computations. In: Risø-R-1581(EN) (2006)
Davidson, L., Cokljat, D., Fröhlich, J., Leschziner, M.A., Mellen, C., Rodi, W.: LESFOIL: Large Eddy Simulation of Flow Around a High Lift Airfoil. In: Notes on Numerical Fluid Mechanics, vol. 83. Springer (2003)
Gilling, L., Sørensen, N.N., Davidson, L.: Detached Eddy Simulations of an Airfoil in Turbulent Inflow. In: 47th AIAA Aerospace Sciences Meeting Including The New Horizons Forum and Aerospace Exposition, Orlando, Florida, January 5-8 (2009)
Haase, W., Braza, M., Revell, A.: DESider - A European effort on hybrid RANS-LES modelling. In: Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol. 103. Springer, Berlin (2009)
Johansen, J., Sørensen, N.: Application of a Detached-Eddy Simulation model on airfoil flows. In: 14th Symposium IEA Joint Action, Aerodynamics of Wind Turbines, Boulder, CO (December 2000)
Li, D.: Numerical simulation of thin airfoil stall by using a modified DES approach. International Journal for Numerical Methods in Fluids 54(3), 325–332 (2007), doi:10.1002/fld.1403.
Madsen, J., Lenz, K., Dynampally, P., Sudhakar, P.: Investigation of grid resolution requirements for detached eddy simulation of flow around thick airfoil sections. In: EWEC 2009, Parc Chanot, Marseille, France, March 16-19 (2009)
McGhee, J.R., Walker, B.S., Millard, B.F.: Experimental results for the Eppler 387 Airfoil at low Reynolds numbers in the Langley low-turbulence pressure tunnel. In: NASA Technical Memorandum 4062 (1988)
Mockett, C.: A comprhensive study of detached-eddy simulation. Ph.D. thesis, Institute of Fluid Mechanics and Engineering Acoustics, Technische Universität Berlin (2009)
Schneemann, J., Knebel, P., Milan, P., Peinke, J.: Lift measurements in unsteady flow conditions. In: EWEC 2010, Warsaw, Poland, April 20-23 (2010)
Somers, D.M., Tangler, J.: Design and experimental results for the S809 Airfoil. NREL/SR-440-6918 UC Category:1213 D 97000206, 1–104 (1997)
Spalart, P.R., Allmaras, S.R.: A one-equation turbulence model for aerodynamic flows. Recherche Aerospatiale (1), 5–21 (1994)
Spalart, P.R., Jou, W., Strelets, M., Allmaras, S.: Comments on the feasibility of LES for wings, and on a hybrid RANS/LES approach. In: Advances in DNS/LES, vol. 1 (1997)
Spalart, P.R.: The uses of DES: natural, extended, and improper. Invited presentation at the DESider Hybrid RAN-LES Symposium, Stockholm, Sweden, July 14-15 (2005)
Spalart, P.R., Deck, S., Shur, M., Squires, K., Strelets, M., Travin, A.: A new version of detached-eddy simulation, resistant to ambiguos grid densities. In: Theoretical and Computational Fluid Dynamics, vol. 20, pp. 181–195 (2006)
Spalart, P.R., Rumsey, C.L.: Effective Inflow Conditions for Turbulence Models in Aerodynamic Calculations. AIAA Journal 45(10), 2544–2553 (2007)
Spalart, P.R.: Detached-eddy simulation. Annual Review of Fluid Mechanics 41, 181–202 (2009)
Tangler, J., Somers, D.M.: NREL Airfoil Families for HAWTs. In: AWEA, pp. 1–12 (1995)
Timmer, W.A.: Two-dimensional low-Reynolds number wind tunnel results for airfoil NACA 0018. Wind Engineering Volume 32(6), 525–537 (2008)
Walters, D.K., Cokljat, D.: A Three-Equation Eddy-Viscosity Model for Reynolds-Averaged Navier Stokes Simulations of Transitional Flow. J. Fluids Eng. 130(12), 121401, 14 (2008), doi:dx.doi.org/10.1115/1.2979230
Wolken–Möhlmann, G., Knebel, P., Barth, S., Peinke, J.: Dynamic lift measurements on a FX79W151A airfoil via pressure distribution on the wind tunnel walls. The Science of Making Torque from Wind. Journal of Physics: Conference Series 75, 012026 (2007), doi:10.1088/1742-6596
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2014 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Daniele, E., Herráez, I., Stoevesandt, B., Peinke, J. (2014). DES Study of Airfoil Lift Coefficient Sensitivity to Flow Turbulence. In: Hölling, M., Peinke, J., Ivanell, S. (eds) Wind Energy - Impact of Turbulence. Research Topics in Wind Energy, vol 2. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-54696-9_2
Download citation
DOI: https://doi.org/10.1007/978-3-642-54696-9_2
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-54695-2
Online ISBN: 978-3-642-54696-9
eBook Packages: EnergyEnergy (R0)