Lift enhancement on oscillating airfoils

39th AIAA Fluid Dynamics Conference

Volumn , Issue , 2009, Pages

  Cleaver, D J ^a   Wang, Z ^a   Gursul, I ^a  

^a University of Bath   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

LEADING EDGE; LEADING-EDGE VORTICES; LIFT COEFFICIENT; LIFT CURVES; LIFT ENHANCEMENT; LIFT FORCE; LOCAL MAXIMUM; OSCILLATING AIRFOIL; PARTICLE IMAGE VELOCIMETRY MEASUREMENT; SUBHARMONICS; TIME-SCALES; TRAILING EDGES; UPPER SURFACE; VORTEX CONVECTION; WAKE FREQUENCY;

FLOW VISUALIZATION; FLUID DYNAMICS; REYNOLDS NUMBER; STROUHAL NUMBER; VELOCITY MEASUREMENT; VORTEX FLOW; WAKES;

AIRFOILS;

EID: 78349231667     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (34)

1. Pines, D.J. and Bohorquez, F. "Challenges facing future micro-air-vehicle development," Journal of Aircraft, Vol. 43, No. 2, 2006, pp. 290-305.
2. Mueller, T.J. and DeLaurier, J.D. "Aerodynamics of small vehicles," Annual Review of Fluid Mechanics, Vol. 35, 2003, pp. 89-111.
3. Ho, S., Nassef, H., Pornsinsirirak, N., Tai, Y.C. and Ho, C.M. "Unsteady aerodynamics and flow control for flapping wing flyers," Progress in Aerospace Sciences, Vol. 39, No. 8, 2003, pp. 635-681.
4. Shyy, W., Berg, M. and Ljungqvist, D. "Flapping and flexible wings for biological and micro air vehicles," Progress in Aerospace Sciences, Vol. 35, No. 5, 1999, pp. 455-505.
5. Taylor, G., Wang, Z., Vardaki, E. and Gursul, I. "Lift enhancement over flexible nonslender delta wings," AIAA Journal, Vol. 45, No. 12, 2007, pp. 2979-2993.
6. Cleaver, D.J., Wang, Z.J. and Gursul, I. "Delay of Stall by Small Amplitude Airfoil Oscillation at Low Reynolds Numbers," 47th AIAA Aerospace Sciences Meeting, AIAA 2009-392, AIAA, 2009.
7. Visbal, M.R. "High-Fidelity Simulation of Transitional Flows Past a Plunging Airfoil," 47th AIAA Aerospace Sciences Meeting, AIAA 2009-391, AIAA, 2009.
8. Moffat, R.J. "Contributions to the Theory of Single-Sample Uncertainty Analysis," Journal of Fluids Engineering-Transactions of the ASME, Vol. 104, No. 2, 1982, pp. 250-260.
9. Heathcote, S. "Flexible Flapping Airfoil Propulsion at Low Reynolds Numbers," Ph.D. Dissertation, Dept of Mechanical Engineering, University of Bath, Bath, 2006.
10. Sunada, S., Yasuda, T., Yasuda, K. and Kawachi, K. "Comparison of wing characteristics at an ultralow Reynolds number," Journal of Aircraft, Vol. 39, No. 2, 2002, pp. 331-338.
11. Sunada, S., Sakaguchi, A. and Kawachi, K. "Airfoil section characteristics at a low Reynolds number," Journal of Fluids Engineering-Transactions of the Asme, Vol. 119, No. 1, 1997, pp. 129-135.
12. Tsang, K.K.Y., So, R.M.C., Leung, R.C.K. and Wang, X.Q. "Dynamic stall behavior from unsteady force measurements," Journal of Fluids and Structures, Vol. 24, No. 1, 2008, pp. 129-150.
13. Chen, J.M. and Choa, C.C. "Freestream disturbance effects on an airfoil pitching at constant rate," Journal of Aircraft, Vol. 36, No. 3, 1999, pp. 507-514.
14. McKinney, W.D. ,J.;. "The Wingmill: An Oscillating-Wing Windmill," Journal of Energy, Vol. 5, No. 2, 1981, pp. 109-115.
15. Frampton, K.D., Goldfarb, M., Monopoli, D. and Cveticanin, D. "Passive aeroelastic tailoring for optimal flapping wings," Proceedings of Conference on Fixed, Flapping and Rotary Wing Vehicles at Very Low Reynolds Numbers, 2000, pp. 473-482.
16. Graftieaux, L., Michard, M. and Grosjean, N. "Combining PIV, POD and vortex identification algorithms for the study of unsteady turbulent swirling flows," Measurement Science & Technology, Vol. 12, No. 9, 2001, pp. 1422-1429.
17. Morgan, C.E., Babinsky, H. and Harvey, J.K. "Vortex Detection Methods for use with PIV and CFD data," 47th AIAA Aerospace Sciences Meeting, AIAA 2009-74, AIAA, 2009.
18. Godoy-Diana, R., Marais, C., Aider, J.L. and Wesfreid, J.E. "A model for the symmetry breaking of the reverse Benard-von Karman vortex street produced by a flapping foil," Journal of Fluid Mechanics, Vol. 622, 2009, pp. 23-32.
19. Jones, K.D., Dohring, C.M. and Platzer, M.F. "Experimental and computational investigation of the Knoller-Betz effect," AIAA Journal, Vol. 36, No. 7, 1998, pp. 1240-1246.
20. Young, J. and Lai, J.C.S. "Oscillation frequency and amplitude effects on the wake of a plunging airfoil," AIAA Journal, Vol. 42, No. 10, 2004, pp. 2042-2052.
21. Triantafyllou, M.S., Triantafyllou, G.S. and Gopalkrishnan, R. "Wake Mechanics for Thrust Generation in Oscillating Foils," Physics of Fluids a-FluidDynamics, Vol. 3, No. 12, 1991, pp. 2835-2837.
22. Gursul, I., Lin, H. and Ho, C.M. "Effects of Time Scales on Lift of Airfoils in an Unsteady Stream," AIAA Journal, Vol. 32, No. 4, 1994, pp. 797-801.
23. Andro, J.Y. and Jacquin, L. "Frequency effects on the aerodynamic mechanisms of a heaving airfoil in a forward flight configuration," Aerospace Science and Technology, Vol. 13, No. 1, 2009, pp. 71-80.
24. Heathcote, S. and Gursul, I. "Jet switching phenomenon for a periodically plunging airfoil," Physics of Fluids, Vol. 19, No. 2, 2007.
25. von Ellenrieder, K.D. and Pothos, S. "PIV measurements of the asymmetric wake of a two dimensional heaving hydrofoil," Experiments in Fluids, Vol. 44, No. 5, 2008, pp. 733-745.
26. Seifert, A. and Pack, L.G. "Oscillatory control of separation at high Reynolds numbers," AIAA Journal, Vol. 37, No. 9, 1999, pp. 1062-1071.
27. Wu, J.Z., Lu, X.Y., Denny, A.G., Fan, M. and Wu, J.M. "Post-stall flow control on an airfoil by local unsteady forcing," Journal of Fluid Mechanics, Vol. 371, 1998, pp. 21-58.
28. Miranda, S., Vlachos, P.P., Telionis, D.P. and Zeiger, M.D. "Flow control of a sharp-edged airfoil," AIAA Journal, Vol. 43, No. 4, 2005, pp. 716-726.
29. Huang, R.F. and Lin, C.L. "Vortex Shedding and Shear-Layer Instability of Wing at Low-Reynolds Numbers," AIAA Journal, Vol. 33, No. 8, 1995, pp. 1398-1403.
30. Abernathy, F.H. "Flow Over an Inclined Plate," Transactions of the ASME, Journal of Basic Engineering, Vol. 84, 1962, pp. 380 - 388.
31. Fage, A. and Johansen, F.C. "On the Flow of Air Behind an Inclined Flat Plate of Infinite Span," Proceedings of the Royal Society of London Series A, Vol. 116, 1927, pp. 170-197.
32. Hoarau, Y., Braza, M., Ventikos, Y., Faghani, D. and Tzabiras, G. "Organized modes and the three-dimensional transition to turbulence in the incompressible flow around a NACA0012 wing," Journal of Fluid Mechanics, Vol. 496, 2003, pp. 63-72.
33. Huang, R.F. and Lee, H.W. "Turbulence effect on frequency characteristics of unsteady motions in wake of wing," AIAA Journal, Vol. 38, No. 1, 2000, pp. 87-94.
34. Yeung, W.W.H. "Self-similarity of confined flow past a bluff body," Journal of Wind Engineering and Industrial Aerodynamics, Vol. 96, No. 4, 2008, pp. 369-388.