Hostname: page-component-6766d58669-mzsfj Total loading time: 0 Render date: 2026-05-22T01:40:16.608Z Has data issue: false hasContentIssue false
  • English
  • Français

Wing tip vortex control using synthetic jets

Published online by Cambridge University Press:  03 February 2016

P. Margaris  and
I. Gursul
P. Margaris
Affiliation:
Department of Mechanical Engineering, University of Bath, Bath, UK
I. Gursul
Affiliation:
Department of Mechanical Engineering, University of Bath, Bath, UK
Get access Rights & Permissions [Opens in a new window]

Abstract

An experimental investigation was conducted to study the effect of synthetic jet (oscillatory, zero net mass flow jet) blowing near the wing tip, as a means of diffusing the trailing vortex. Velocity measurements were taken, using a Particle Image Velocimetry system, around the tip and in the near wake of a rectangular wing, which was equipped with several blowing slots. The effect of the synthetic jet was compared to that of a continuous jet blowing from the same configurations. The results show that the use of synthetic jet blowing is generally beneficial in diffusing the trailing vortex and comparable to the use of continuous jet. The effect was more pronounced for the highest blowing coefficient used. The driving frequency of the jet did not generally prove to be a significant parameter. Finally, the instantaneous and the phase-locked velocity measurements helped explain the different mechanisms employed by the continuous and synthetic jets in diffusing the trailing vortex.

Information

Type
Research Article
Information
The Aeronautical Journal , Volume 110 , Issue 1112 , October 2006 , pp. 673 - 681
Copyright
Copyright © Royal Aeronautical Society 2006 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

1. Munk, M.M., The minimum induced drag of aerofoils, NACA Report 121, 1923.Google Scholar
2. Hoerner, S.F., Fluid-Dynamic Drag, Published by the author, 1965, Chap 7.Google Scholar
3. Kroo, I., Drag due to lift: Concepts for prediction and reduction, Annual Rev: Fluid Mechanics, 2001, 33, pp 587–617.Google Scholar
4. Jupp, J., Wing aerodynamics and the science of compromise, Aeronaut J, 2001, 105, (1053), pp 633–641.Google Scholar
5. Slooff, J.W., De Wolf, W.B., Van Der Wal, H.M.M. and Maseland, J.E.J., Aerodynamic and aero-acoustic effects of flap tip fences, AIAA 2002-0848, 40th Aerospace Sciences Meeting & Exhibit, Reno, NV, USA.Google Scholar
6. Coustols, E., Stumpf, E., Jaquin, L., Moens, F., Vollmers, H. and Gerz, T. ‘Minimised Wake’: A collaborative research programme on aircraft wake vortices, AIAA 2003-0938, 41st Aerospace Sciences Meeting & Exhibit, Reno, NV, USA.Google Scholar
7. Tavella, D.A., Wood, N.J., Lee, C.S. and Roberts, L., Lift modulation with lateral wing-tip slowing, J Aircr, 1988, 25, (4), pp 311–316.Google Scholar
8. Lee, C.S., Tavella, D., Wood, N.J. and Roberts, L., Flow structure and scaling laws in lateral wing-tip blowing, AIAA J, 27, (8), 1989, pp 1002–1007.Google Scholar
9. Wu, J.M., Vakili, A. and Chen, Z.L., Investigation on the effects of discrete wingtip jets, AIAA-83-0546, AIAA 21st Aerospace Sciences Meeting, Reno, NV, USA.Google Scholar
10. Wu, J.M., Vakili, A.D. and Gilliam, F.T., Aerodynamic interactions ofs wingtip flow with discrete wingtip jets, AIAA-84-2206. AIAA 2nd Applied Aerodynamics Conference. Seattle, Washington, USA.Google Scholar
11. Mineck, R.E., Study of the potential aerodynamic benefits from spanwise blowing at wingtip, NASA TP-3515, 1995.Google Scholar
12. Simpson, R.G., Ahmed, N.A. and Archer, R.D., Near field study of vortex attenuation using wing-tip blowing, Aeronaut J, 2002, 106, 19. (1057), pp 117–120.Google Scholar
13. Duraisamy, K. and Baeder, J.D., Control of tip-vortex structure using steady and oscillatory blowing, AIAA 2003-3407. 21st AIAA Applied Aerodynamics Conference. Orlando, FL, USA.Google Scholar
14. Margaris, P. and Gursul, I., Effect of steady blowing on wing tip flowfield, AIAA 2004-2619, 2nd Flow Control Conference, Portland, 21. OR, USA, June-July 2004.Google Scholar
15. McInery, S.A., Meecham, W.C. and Soderman, P.T., Pressure Fluctuations in the tip region of a blunt-tipped airfoil, AIAA J, January 1990, 28, (1), pp 6–13.Google Scholar
16. Brooks, T.F. and Marcolini, M.A., Airfoil tip vortex formation noise, AIAA J, February 1986, 24, (2), pp 246–252.Google Scholar
17. Macaraeg, M.G., Fundamental Investigations of Airframe Noise, AIAA Paper AIAA-98-2224.Google Scholar
18. Sen, R., Vortex-oscillation model of airfoil side-edge noise, AIAA J, March 1997, 35, (3), pp 441–449.Google Scholar
19. Khorrami, M.R. and Singer, B.A., Stability analysis for noise-source modelling of a part-span flap, AIAA J, October 1999, 37, (10), pp 1206–1212.Google Scholar
20. Cummings, R.M., Morton, S.A. and Forsythe, J.R., Detached-eddy simulation of slat and flap aerodynamics for a high-lift wing, AIAA Paper 2004-1233, 42nd Aerospace Sciences Meeting, 5–8 January 2004, Reno, NV, USA.Google Scholar
21. Gursul, I., Review of unsteady vortex flows over slender delta wings, J Aircr, March-April 2005, 42, (2), pp 299–319.Google Scholar