Hostname: page-component-cb9f654ff-kl2l2 Total loading time: 0 Render date: 2025-08-19T05:08:58.462Z Has data issue: false hasContentIssue false
  • English
  • Français

Effects of delta planform tip sails on the performance of a blunt edged rectangular wing

Published online by Cambridge University Press:  04 July 2016

L. W. Traub
L. W. Traub*
Affiliation:
Aerospace Engineering Department, Texas A&M University Texas, USA
Get access Rights & Permissions [Opens in a new window]

Extract

A windtunnel study was undertaken to determine the effects of delta planform tip sails (DPTS) on the aerodynamic characteristics of a planar blunt edged wing. In the investigation, the sail incidence and chordwise attachment position were varied. The results indicate that significant performance improvements can be obtained with DPTS. For all DPTS variations, increases of lift curve slope, maximum lift coefficient and Oswald efficiency factor were recorded and compared to the basic wing.

Information

Type
Research Article
Information
The Aeronautical Journal , Volume 101 , Issue 1002 , February 1997 , pp. 87 - 92
Copyright
Copyright © Royal Aeronautical Society 1997 

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. Smith, S.C. and Kroo, I.M. Computation of induced drag for elliptical and crescent wings, J Aircr, 1993, 30, (4), pp 446–452.Google Scholar
2. Vugen, P.M.H.W., van Dam, C.P. and Holmes, B.J. Sheared wing tip aerodynamics: windtunnel and computational investigation, J Aircr, 1989. 26, (3), pp 207–213.Google Scholar
3. Naik, D.A. and Ostowari, C. Effects of nonplanar outboard wing forms on a wing, J Airer, 1990, 27, (2), pp 117–122.Google Scholar
4. Traub, L.W. and Nurick, A. Effects of wing tip vortex flaps, J Aircr, 1993, 30, (4), pp 557–560.Google Scholar
5. Heyson, H.H., Riebe, G.D. and Fulton, C.L. Theoretical parametric study of the relative advantages of winglets and wing-tip extensions, NASA TP 1020, 1977.Google Scholar
6. Asai, K. Theoretical considerations in the aerodynamic effectiveness of winglets, J Aircr, 1985, 22, (7), pp 635–637.Google Scholar
7. Conley, N. Winglet toe-out optimization for the Gates Learjet Longhorn wing, J Aircr, 1980, 17, (12), pp 851–855.Google Scholar
8. Spillman, J.J. The use of wing tip sails to reduce vortex drag, Aeronaut J, September 1978, 82, pp 387–395.Google Scholar
9. Spillman, J.J. Wing tip sails; progress to date and future developments. Aeronaut J, December 1987, 91, (910), pp 445–453.Google Scholar
10. Traub, L.W. Aerodynamic effects of delta planform tip sails on wing performance, J Aircr, 1994, 31, (5), pp 1156–1159.Google Scholar
11. Chigier, N.A. and Corsiglia, V.R. Tip vortices-velocity distributions, NASA TM X-62,087, September 1971.Google Scholar
12. Shivananda, T.P., McMahon, J.M. and Gray, R.B. Surface pressure measurements at the tip of a model helicopter rotor in hover, J Aircr, 1978. 15, (8), pp 460–467.Google Scholar
13. Francis, M.S. and Kennedy, D.A. Formation of a trailing vortex, J Aircr, 1979. 16, (3), pp 148–154.Google Scholar
14. McInerny, S.A., Meecham, W.C. and Soderman, P.T. Pressure fluctuations in the tip region of a blunt-tipped airfoil, AIAA J, 1990, 28, (1), ppo-13.Google Scholar
15. Pope, A. and Rae, W.H. Low-Speed Windtunnel Testing, John Wiley and Sons, 1984, pp 199–208 and pp 362-424.Google Scholar
16. Hoerner, S.F. Fluid Dynamic Lift, published by the author, Brick Town, NJ, 1975, Chapter 4.Google Scholar
17. Kuchemann, D. The Aerodynamic Design of Aircraft, Pergamon Press, 1978, pp 351–361.Google Scholar