Browse > Article
http://dx.doi.org/10.5139/JKSAS.2003.31.9.001

Velocity Field Measurements Over A Lex/Delta Wing By Triple Axis Hot-Film Anemometry  

Lee,Gi-Yeong (공군사관학교 기계공학과)
Son,Myeong-Hwan (공군사관학교 항공우주공학과)
Jang,Yeong-Il (공군사관학교 항공우주공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.31, no.9, 2003 , pp. 1-8 More about this Journal
Abstract
Velocity data were acquired at a series of stations in the chordwise direction above a delta wing with leading edge extension, using a triple axis hot film anemometry. Surveys normal to planform yield velocity field data at incidence angle of 24$^{\circ}$and 32$^{\circ}$at a centerline chord Reynolds number of $1.76{\times}10^6$. Experimental results of velocity measurements of mean velocity of three components gave a confidence to quantitative investigate the vortical flow field over a LEX-delta wing with this probe. The present experiments indicated the existence of both wing and LEX vortex where the local mean axial velocity is maximum. It also shown the development of secondary vortex of opposite sign of rotating above the wing surface near the leading edge. The insertion of probe across the flow field was found to have little influence on the position of the vortex core.
Keywords
Triple Axis hot Film Anemometry; Velocity Field; Delta Wing; Vortex Flow;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Sohn, M. H., & Lee, K. Y., "Experiments Investigation of a Yawed Delta Wing Having Leading Edge Extension," AIAA 2002-3267, 20th Applied Aerodynamics Conference, 24-26 June, 2002, St. Louis, Missouri.
2 Visser, K. D., and Nelson, R. C., "Measurements of Circulation and Vorticity in the Leading Edge Vortex of a Wing," AIAA Journal, Vol. 31, No. 1, 1993, pp. 104-111.   DOI
3 Honkan, A., and Andreopoulos, J. "Instantaneous Three-Dimensional Vorticity Measurements in Vortical Flow over a Delta Wing," AIAA Journal, Vol. 35, No. 10, 1997, pp 1612-1620.   DOI   ScienceOn
4 Cornelius, K. C., "Analysis of Vortex Bursting Utilizing Three-Dimensional Laser Measurements," Journal of Aircraft, Vol. 32, No. 2, 1995, pp. 297-306.   DOI   ScienceOn
5 Riley, A. J., and Lowson, M. V., "Development of a Three-Dimensional Free Shear Layer," Journal of Fluid Mechanics, Vol. 369, 1998, pp. 49-89.
6 Menke, M., Yang, H., and Gursul, I., "Experiments on the Unsteady Nature of Vortex Breakdown over Delta Wings," Experiments in Fluids, Vol. 27, 1999, pp. 262-272.   DOI
7 Cummings, R. M., Morton, S. A, Siegel, S. G., "Computational Simulation and PIV Measurements of the Laminar Vortical Flowfield for a Delta Wing at High Angle of Attack," AIAA Paper 2003-1102, 41th Aerospace Science Meeting, 6-9 Jan., 2003, Reno, Nevada.
8 Payne, F. M., Ng, T. T., and Nelson, R. C., "Seven Hole Probe Measurement of Leading Edge Vortex Flow," Experiments in Fluids, Vol. 7, 1989, pp. 1-8.   DOI
9 손명환, 이기영, "옆미끄럼각을 갖는 LEX, 삼각날개 형상에 대한 높은 받음각 와유동의 가시화 연구" 한국항공우주학회지 제30권 제5호, 2002, pp. 109-117.
10 이기영, 손명환, "연장된 앞전을 갖는 편요된 삼각날개의 높은 받음각에서의 와류 특성에 관한 연구" 한국항공우주학회지 제30권 제7호, 2002, pp. 105-112.   과학기술학회마을   DOI   ScienceOn
11 Sohn, M. H., & Lee, K. Y., "Effects of Sideslip on High-Incidence Vortical Flow of a Delta Wing with the Leading Edge Extension," AIAA 2003-1107, 41th Aerospace Science Meeting, 6-9 Jan., 2003, Reno, Nevada.