Drag reduction on gurney flaps by three-dimensional modifications

Journal of Aircraft

Volumn 43, Issue 1, 2006, Pages 132-140

  Meyer, R ^a,c   Hage, W ^a,c   Bechert, D W ^a,c,d   Schatz, M ^b,d,e   Thiele, F ^b,d,e  

^a GERMAN AEROSPACE CENTER DLR   (Germany)

^b TECHNISCHE UNIVERSITÄT BERLIN   (Germany)

^c Department of Turbulence Research ^*  (Germany)

^d AIAA   (United States)

^e Herrmann Föttinger Institute for Fluid Mechanics

Author keywords

[No Author keywords available]

Indexed keywords

AIRFOILS; ANEMOMETERS; COMPUTER SIMULATION; NAVIER STOKES EQUATIONS;

DRAG REDUCTION; EDDY SIMULATION; GURNEY FLAPS; THREE-DIMENSIONAL MODIFICATIONS;

DRAG;

EID: 33644628643     PISSN: 00218669     EISSN: 15333868     Source Type: Journal    
DOI: 10.2514/1.14294     Document Type: Article

References (29)

1. Gruschwitz, E., and Schrenk, O., "Über eine einfache Möglichkeit zur Auftriebserhöhung von Tragflügeln," Zeitschrift für Flugtechnik und Motor-luftschiffahrt. Vol. 20, Oct. 1932, pp. 597-601.
2. Abbott, I. H., and von Doenhoff, A. E., Therory of Wing Sections, Dover, New York, 1959, Chap. 8.
3. Zaparka, E. F., "Aircraft and Control Thereof," U.S. Patent No. 19,412, Jan. 1935.
4. Liebeck, R. H., "Design of Subsonic Airfoils for High Lift," Journal of Aircraft, Vol. 15, No. 9, 1978, pp. 547-561.
5. Ross, J. C., Storms, B. L., and Carrannanto, P. G., "Lift-Enhancing Tabs on Multielement Airfoils," Journal of Aircraft, Vol. 32, No. 3, 1995, pp. 649-655.
6. Storms, B. L., and Ross, J. C., "Experimental Study of Lift-Enhancing Tabs on a Two-Element Airfoil," Journal of Aircraft, Vol. 32, No. 5, 1995, pp. 1072-1078.
7. Henne, P. A., "Innovation with Computational Aerodynamics: The Divergent Trailing-Edge Airfoil," Applied Computational Aerodynamics, edited by P. A. Henne, Vol. 125, Progress in Aeronautics, AIAA, Washington, DC, 1990, Chap. 8.
8. "Boeing Studying 747 Variants," Aviation Week and Space Technology, 28 June 1999, p. 71.
9. Bechert, D. W., Stanewsky, E., and Hage, W., "Windkanalmessungen an einem Transsonik-Flügel mit Strömungsbeeinflussenden Maßnahmen. Teil I: Polaren," DLR, German Aerospace Center, Internal Rept. DLR-IB 92517-99/B3-1, Berlin/Goettingen, June 1999.
10. Bechert, D. W., Stanewsky, E., and Hage, W., "Windkanalmessungen an einem Transsonik-Flügel mit Strömungsbeeinflussenden Maßnahmen. Teil II: Druckverteilungen," DLR, German Aerospace Center, Internal Rept. DLR-IB 92517-99/B3-2, Berlin/Goettingen, June 1999.
11. Sauvage, P., "Étude expérimentale et numérique des écoulements potentiels et visqueux dans le voisinage d'un bord de fuite épais cambré," Ph.D. Dissertation, L'École Nationale Supérieure de l'Aéronautique et de l'Espace, Toulouse, No. d'ordre: 237, Feb. 1998.
12. Kentfteld, J. A. C., "Theoretically and Experimentally Obtained Performances of Gurney Flap Equipped Wind Turbines," Wind Engineering, Vol. 18, No. 2, 1994, pp. 63-74.
13. Sauvage, P., Pailhas, G., and Coustols, E., "Detailed Flow Pattern Around Thick Cambered Trailing Edges," 7th Asian Congress of Fluid Mechanics, Dec. 1997.
14. Lee, H. T., and Kroo, I. M., "Computational Investigation of Wings with Miniature Trailing Edge Control Surfaces," AIAA Paper 2004-2693, June 2004.
15. Schatz, M., Günther, B., and Thiele, F., "Computational Modeling of the Unsteady Wake Behind Gurney Flaps," AIAA Paper 2004-2417, June 2004.
16. Roshko, A.B., "Bluff Bodies," Journal of Aeronautical Sciences, 1955, p. 124.
17. Bechert, D. W., Meyer, R., and Hage, W., "Drag Reduction of Airfoils with Miniflaps. Can We Learn from Dragonflies?," AIAA Paper 2000-2315, June 2000.
18. Meyer, R., Bechert, D. W., and Hage, W., "Drag Reduction on Gurney Flaps and Diverging Trailing Edges," Notes on Numerical Fluid Mechanics, Vol. 76, Springer-Verlag, Berlin, 2000, pp. 229-245.
19. Jeffrey, D., Zhang, X., and Hurst, D. W., "Aerodynamics of Gurney flaps on a Single-Element High-Lift Wing," Journal of Aircraft, Vol. 37, No. 2, 2000, pp. 295-301.
20. Hoerner, S. F., Fluid Dynamic Drag, published by author, Midland Park, NJ, 1965.
21. Allen, J. B., "Trailing edge Splitter," U.S. Patent No. 5,265,830, 30 Nov. 1993.
22. Meyer, R., "Experimentelle Untersuchungen von Rückstromklappen auf Tragflügeln zur Beeinflussung von Strömungsablösungen," Ph.D. Dis sertation, Hermann-Foettinger Inst, for Fluid Dynamics, Technical Univ. Berlin, Berlin, Dec. 2000.
23. Bechert, D. W., "Excitation of Instability Waves," Zeitschrift für Flugwissenschaften und Weltraumforschung, Vol. 9, No. 6, 1985, pp. 356-361.
24. Huerre, P., and Monkewitz, P., "Absolute and Convective Instabilities in Free Shear Layers," Journal of Fluid Mechanics, Vol. 159. 1985, pp. 151-168.
25. Koch, W., "Local Instability Characteristics and Frequency Determination of Self-Excited Wake Flows," Journal of Sound and Vibration, Vol. 99, No. 1, 1985, pp. 53-83.
26. Rung, T., and Thiele, F., "Computational Modelling of Complex Boundary-Layer Flows," 9th International Symposium on Transport Phenomena in Thermal-Fluid Engineering, 1996, pp. 321-326.
27. Schatz, M., "Numerische Simulation der Beeinflussung instationärer Strömungsablösung durch frei bewegliche Rückstromklappen auf Tragflügeln," Ph.D. Dissertation, Hermann-Foettinger Inst, for Fluid Dynamics, Technical Univ. Berlin, Berlin, June 2003.
28. Zerihan, J., and Zhang, X., "Aerodynamics of Gurney Flaps on a Wing in Ground Effect," AIAA Journal, Vol. 39, No. 5, 2001, pp. 772-780.
29. Jeong, J., and Hussain, F., "On the Identification of a Vortex," Journal of Fluid Mechanics, Vol. 285, 1995, pp. 69-94.