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KSME international journal v.18 no.6, 2004년, pp.1042 - 1051   피인용횟수: 2

Vortical Flows over a Delta Wing at High Angles of Attack

Lee, Young-Ki   (School of Mechanical Engineering, Andong National UniversityUU0000902  ); Kim, Heuy-Dong   (School of Mechanical Engineering, Andong National UniversityUU0000902  );
  • 초록

    The vortex flow characteristics of a sharp-edged delta wing at high angles of attack were studied using a computational technique. Three dimensional, compressible Reynolds-averaged Navier-Stokes equations were solved to understand the effects of the angle of yaw, angle of attack, and free stream velocity on the development and interaction of vortices and the relationship between suction pressure distributions and vortex flow characteristics. The present computations gave qualitatively reasonable predictions of vortical flows over a delta wing, compared with past wind tunnel measurements. With an increase in the angle of yaw, the symmetry of the pair of leading edge vortices was broken and the vortex strength was decreased on both windward and leeward sides. An increase in the free stream velocity resulted in stronger leading edge vortices with an outboard movement.


  • 주제어

    Angle of Attack .   Angle of Yaw .   Delta Wing .   Vortical Flow .   Vortex Breakdown.  

  • 참고문헌 (21)

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    2. Sohn, M. H. and Lee, K. Y., 2002, 'Experimental Investigation of Vortex Flow of a Yawed Delta Wing Having Leading Edge Extension,' AIAA paper 2002-3267 
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    9. Kim, T. H., Kweon, Y. H., Kim, H. D. and Sohn, M. H., 2003, 'A Study of the Vortical Flow over a Delta Wing with a Leading Edge Extension,' 6th Int. Symposium on Experimental and Computational Aerothermodynamics of Internal Flows, Shanghai, China, pp. 408-413 
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    15. Gortz, S., Rizzi, A. and Munukka, K., 1999, 'Computational Study of Vortex Breakdown over Swept Delta Wings,' AIAA Paper 99-3118 
    16. Grismer, D. S., 1995, 'Double-Delta-Wing Aerodynamics for Pitching Motions with and without Sideslip,' J. Aircraft, Vol. 32, pp. 1303-1311 
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    18. Fujii, K. and Schiff, L. B., 1989, 'Numerical Simulation of Vortical Flows over Strake-Delta Wing,' AIAA J., Vol. 27, pp. 1153-1162 
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    20. Barth, T. J. and Jespersen, D., 1989, 'The Design and Application of Upwind Schemes on Unstructured Meshes,' AIAA Paper 89-0366 
    21. Ekaterinaris, J. A. and Schiff, L. B., 1990, 'Numerical Simulation of the Effects of Variation of Angle of Attack and Sweep Angle on Vortex Breakdown over Delta Wings,' AIAA Paper 90-3000 
  • 이 논문을 인용한 문헌 (2)

    1. 2004. "" KSME international journal, 18(12): 2273~2283     
    2. 2006. "" Journal of mechanical science and technology, 20(1): 147~157     

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