This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Flap Sizing for Wake Vortex Instability
Technical Paper
2000-01-1693
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The authors explore the possibility of designing the flap system on a given wing for enhanced Crow instability. The problem motivation in terms of increased traffic volume and increased safety is described. A brief review of the technical literature is given. An exploratory two-dimensional potential flow formulation is presented. A generic wing and flap combination is used for trade-off studies. The authors show that the frequency with which the flap-tip and the wing-tip vortex filaments swirl around each other can be tuned to match that which corresponds to the largest rate of amplitude growth in the wake. The extent of the analysis being two-dimensional, the authors suggest careful wind- or water-tunnel testing in three dimensions to validate the concept.
Authors
Topic
Citation
Rebours, R. and Rokhsaz, K., "Flap Sizing for Wake Vortex Instability," SAE Technical Paper 2000-01-1693, 2000, https://doi.org/10.4271/2000-01-1693.Also In
References
- Rokhsaz, K. A Brief Survey of Wing Tip Devices for Drag Reduction, SAE- 932574 , 1993 SAE Transactions, 102 1 1994 1901 1910
- Patterson, J. C. Wingtip Vortex Turbine, United State Patent # 4,917,332, April 1990
- Patterson, J. C. Fletchner, S. G. Exploratory Wind-Tunnel Investigation of Wingtip-Mounted Vortex Turbine for Vortex Energy Recovery, NASA TN-2468 June 1985
- Dunham, R. E., Jr Model Tests of Various Vortex Dissipation Techniques in a Water Towing Tank, NASA LWP-1146, January 1974
- Vogel, J. M. An Application of the Ogee Tip, Proceedings of NASA-Industry-University-General Aviation Drag Reduction Workshop University of Kansas Lawrence, KS July 1975 191 202, also NASACR-145627
- Whitcomb, R. T. A Design Approach and Selected Wind Tunnel Results at High Subsonic Speeds for Wing-Tip Mounted Winglets NASA TN-D-8260 1976
- Spillman, J. J. Use of Wing Tip Sails to Reduce vortex Drag, Aeronautical Journal, 82 813 September 1978 387 395
- Bates, G. P. Jr., A Selected Bibliography Pertaining to the Aircraft Wake Vortex Problem, AGARD Symposium on Flight in Turbulence Bedfordshire, England May 1973
- Hallock, J. N. Aircraft Wake Vortices: An Annotated Bibliography 1923-1990 DOT-FAA-RD-90-30 January 1991
- Andrews, W. H. Flight Evaluation of the Wing Vortex Wake Generated by Large Jet Transports, Aircraft Wake Turbulence and Its Detection Olson, J., Goldberg, A., Rogers, M., Plenum Press New York 1971 287 288
- Andrews, W. H. Drinkwater, F. J. Krier, G. E. Robinson, G. H. Flight-Test Evaluation of the Wing Vortex Wake Generated by Large Jet-Transport Aircraft, Compilation of Working Papers on Wake Turbulence Tests FAA Washington, DC April 1970
- Andrews, W. H. Robinson, G. H. Larson, R. R. Aircraft Response to the Wing Trailing Vortices Generated By Large Jet Transports, Aircraft Safety and Operating Problems, 1 NASA-SP-270 1971 115 126
- Andrews, W. H. Robinson, G. H. Larson, R. R. Flight Investigation of Aircraft Response to the Wing Vortex Wake Generated by Jet Transport Aircraft NASA TN D-6655 March 1972
- Andrews, W. H. Tymczyszyn, J. J. Jacobson, R. A. Drinkwater, F. J. Flight Investigation of the Response of Wide-Body Tri-Jet to the Wing Vortex Wake Generated by Large Transport Aircraft, FWP-35 NASA Flight Research Center Edwards, CA Feb 1973
- Crow, S. C., Stability Theory for a Pair of Trailing Vortices, AIAA Journal, 8 12 December 1970 2172 2179
- Eliason, B. G. Gartshere, I. S. Parkinson, G. V. Wind Tunnel Investigation of Crow Instability, Journal of Aircraft, 12, 12, December 1975 985 988
- Burnham, D. C. B-747 Vortex Alleviation Flight Tests: Ground-Based Sensor Measurements FAARD-81-99 Jan 1982
- Rossow, V. J. Effect of Wing Fins on Lift-Generated Wakes, Journal of Aircraft, Vol 15 3 March 1978 160 167
- Chevalier, H. Flight Test Studies of the Formation and Dissipation of Trailing Vortices, Journal of Aircraft, 10 1 Jan. 1973 14 18
- Burnham, D. C. Sullivan, T. E. Influence of Flaps and Engines on Aircraft Wake Vortices, Journal of Aircraft, Vol 11 9 Sept. 1974 591 592
- Donaldson, C. duP. Bilanin, A. J., Vortex Wakes of Conventional Aircraft AGARD-AG-204 May 1975
- Crouch, J. D. Instability and Transient Growth for two Trailing-Vortex Pairs, Journal of Fluid Mechanics, 350 7 311 330
- Hassan, A. Motion of Three Vortices, Physics of Fluids 22 3 1979 393 400
- okhsaz, K. Foster, S. R. Miller, L. S. Exploratory Study of Aircraft Wake Vortices in a Water Tunnel, AIAA Paper 99-3199, AIAA Applied Aerodynamics Conference Norfolk, VA June 1999