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Article

Modelling the Flow Around Airfoils Equipped with Vortex Generators Using a Modified 2D Navier–Stokes Solver

[+] Author and Article Information
I. G. Nikolaou, E. S. Politis

Department of Wind Energy, Centre for Renewable Energy Sources, 19th km Marathonos Avenue, GR19009, Pikermi, Greece

P. K. Chaviaropoulos

Director of Renewable Energy Sources Division, Center for Renewable Energy Sources, 19th km Marathonos Avenue, GR19009, Pikermi, Greece

J. Sol. Energy Eng 127(2), 223-233 (Apr 25, 2005) (11 pages) doi:10.1115/1.1850486 History: Received July 09, 2004; Revised August 03, 2004; Online April 25, 2005
Copyright © 2005 by ASME
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References

Timmer,  W. A., and van Rooij,  R. P. J. O. M., 2003, “Summary of the Delft University Wind Turbine Dedicated Airfoils,” ASME J. Sol. Energy Eng., 125(4), pp. 488–496.
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Nickelson, J. D., 1986, “A Study of Vortex Generators at Low Reynolds Numbers,” Proc. AIAA 24th Aerospace Sciences Meeting, Reno Nevada.
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Bak, C., Fuglsang, P., Mac Gaunaa, Antoniou, I., 2003, “Wind Tunnel Measurements on two Risø-B1 Airfoils,” Proc. 2003 European Wind Energy Conference & Exhibition, Madrid, Spain, June 16–19 (available only in CD-ROM).
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Patankar,  S. V., and Spalding,  D. B., 1972, “A Calculation Procedure for Heat, Mass, and Momentum Transfer in Three-Dimensional Parabolic Flows,” Int. J. Heat Mass Transfer, 15, pp. 1787–1806.
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Figures

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Schematic representation of VGs
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Coordinate system associated with the superposition of a system of vortex lines to a viscous flow problem
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Approximate and exact distributions of function fy(y)
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Details of the computational grids used
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Lift and drag coefficient distributions for the FFA-W3-241 airfoil. Lines: computations, symbols: experiments.
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Calculated and measured pressure coefficient distributions for three angles of attack for the clean configuration
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Calculated and measured pressure coefficient distributions for three angles of attack and four VG configurations
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Calculated pressure (left) and friction (right) coefficient distributions for four angles of attack for the clean and four VG configurations
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Calculated lift and drag coefficient distributions for the clean and nine VG configurations

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