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The Vortical Flow Field of Delta Wing with Leading Edge Extension  

Lee, Ki-Young (Department of Mechanical Engineering Korea Air Force Academy Chongwon-Gun)
Sohn, Myong-Hwan (Department of Mechanical Engineering Korea Air Force Academy Chongwon-Gun)
Publication Information
Journal of Mechanical Science and Technology / v.17, no.6, 2003 , pp. 914-924 More about this Journal
Abstract
The interaction and breakdown of vortices over the Leading Edge Extension (LEX) - Delta wing configuration has been investigated through wing-surface pressure measurements, the off-surface flow visualization, and 5-hole probe measurements of the wing wake section. The description focused on analyzing the interaction and the breakdown of vortices depending on the angle of attack and the sideslip angle. The Effect of angle of attack and sideslip angle on the aerodynamic load characteristics of the model is also presented. The sideslip angle was found to be a very influential parameter of the vortex flow over the LEX-delta wing configuration. The introduction of LEX vortex stabilized the vortex flow, and delayed the vortex breakdown up to a higher angle of attack. The vortex interaction and breakdown was promoted on the windward side, whereas it was suppressed on the leeward side.
Keywords
Vortex Interaction; Vortex Breakdown; Flow Visualization; 5-Hole Probe; Sideslip Angle; Leading Edge Extension;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Boer, R. G. and Cunningham, A. M., 1990, 'Low-Speed Unsteady Aerodynamics of a Pitching Straked Wing at High Incidence- Part :Test Program,' J. of Aircraft, Vol. 27, No. 1, pp. 23-30   DOI
2 Chung, J., Cho, T., Lee, J. and Sung, B., 'Wind Tunnel Test of a Canard Airplane,' KSME International Journal, Vol. 16, No. 1, pp. 12-131   과학기술학회마을
3 Cornelius, K. C., 1995, 'Analysis of Vortex Bursting Utilizing 3-D Laser Measurements,' J. of Aircraft, Vol. 32, No. 2, pp. 297-306   DOI   ScienceOn
4 Cunningham, A. M. and Boer, R. G., 1990, 'Low-Speed Unsteady Aerodynamics of a Pitching Straked Wing at High Incidence- Part Ⅰ:Harmonic Analysis,' J. of Aircraft, Vol. 27, No. 1, pp. 31-41   DOI
5 Ericksson, L. E., 1999, 'Vortex Characteristics of Pitching Double-Delta Wing,' J. of Aircraft, Vol. 36, No. 2, pp. 349-356   DOI   ScienceOn
6 Ekaterinaris, J. A., Coutley, R. L., Schiff, L. B. and Platzer, M. F., 1995, 'Numerical Investigation of Incidence Flow over a Double-Delta Wing,' J. of Aircraft, Vol. 32, No. 3, pp. 457-463   DOI   ScienceOn
7 Fujii, K. and Schiff, L. B., 1989, 'Numerical Simulation of Vortical Flows over a Strake-Delta Wing,' AIAA J., Vol. 27, No. 9, pp. 1153-1162   DOI   ScienceOn
8 Grismer, D. S. and Nelson, R. C., 1995, 'Double Delta-Wing Aerodynamics for Pitching Motions With and Without Sideslip,' J. of Aircraft, Vol. 32, No. 6, pp. 1303-1311
9 Lee, K. Y., and Sohn, M. H., 2003, 'Combined Effects of Sideslip and Angle of Attack on the Vortical Flow of Delta Wing,' Journal of Korean Society of Aeronautical & Space Science, Vol. 31, No. 2, pp. 17-24   과학기술학회마을   DOI
10 Hebber, S. K., Platzer, M. F. and Fritzelas, A. E., 2002, 'Reynolds Number Effects on the Vortical-Flow Structure Generated by a Double-Delta Wing,' Experiments in Fluids, Vol. 28, pp. 206-216   DOI
11 Hoeijmarkers, H. W. M. and Vaatstra, W., 1983, 'Vortex Flow over Delta and Double Delta Wing,' J. of Aircraft, Vol. 20, No. 9, pp. 825-832   DOI   ScienceOn
12 Menke, M. and Gursul, I., 1997, 'Unsteady Nature of Leading Edge Vortices,' Physics Fluids, Vol. 9, No. 10, pp. 2960-2966   DOI   ScienceOn
13 Ozgoren, M., Sahin, B. and Rockwell, 2002, 'Vortex Structure on a Delta Wing at High Angle of attack,' AIAA J., Vol. 40, No. 2, pp. 285-292   DOI   ScienceOn
14 Riley, A. J. and Lowson, M. V., 1998, 'Development of a Three-Dimensional Free Shear Layer,' J. Fluid Mechanics, Vol. 369, pp. 49-89
15 Sohn, M. H. and Lee, K. Y., 2002, 'Expermental Investigation of Vortex Flow of a Yawed Delta Wing Having Leading Edge Extension,' AIAA Paper, pp. 2002-3267
16 Verhaagen, N. G., 1999, 'Effects of Reynolds Number on the Flow over 76/40-deg Double Delta Wings,' AIAA Paper, pp. 142-152
17 Verhaagen, N. G. and Naarding, S. H. J., 1989, 'Experimental and Numerical Investigation of the Vortex Flow over a Yawed Delta Wing,' J. of Aircraft, Vol. 26, No. 11, pp. 971-978   DOI
18 Winant, C. D. and Browand, F. K., 1974, 'Vortex Pairing : The Mechanism of Tubulent Mixing-Layer Growth at Moderate Reynolds Number,' J. Fluid Mechanics, Vol. 63, pp. 237-255   DOI