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Volume 27 Issue 6
Jun.  2001
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Journal of Beijing University of Aeronautics and Astronautics  > 2001  >  27(6): 674-676.
LI Guo-hui, DENG Xue-ying. Topological Structure Evolution and Stability of the Cross Flow Pattern Around a Slender[J]. Journal of Beijing University of Aeronautics and Astronautics, 2001, 27(6): 674-676. (in Chinese)
Citation: LI Guo-hui, DENG Xue-ying. Topological Structure Evolution and Stability of the Cross Flow Pattern Around a Slender[J]. Journal of Beijing University of Aeronautics and Astronautics, 2001, 27(6): 674-676. (in Chinese)
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Topological Structure Evolution and Stability of the Cross Flow Pattern Around a Slender

  • Beijing University of Aeronautics and Astronautics, Dept. of Flight Vehicle Design and Applied Mechanics

  • Received Date: 14 Mar 2001
  • Publish Date: 30 Jun 2001
    Abstract
  • Topological structure and stability of a slender cross flow at different angles of attack was discussed by the stability theory of dynamic system. It was proved that the development of slender vortices leads to the change of topological structure about cross flow. And it is the change from stable and symmetrical vortices flow pattern to instable and symmetrical vortices flow pattern, and then to stable and asymmetrical vortices flow pattern due to little disturb which leads to the development of asymmetrical slender vortices.

     

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  • [1] Keener E R, Chapman G T. Side forces on a tangent-ogive forebody with a fineness ratio of 3.5 at high angles of attack and mach numbers from 0.1~0.7 . NASA TMX-3437,1977. [2] Keener E R. Flow separation patterns on symmetric forebodies . NASA TM86016, 1986. [3] Peake D J, Tobak M. Three dimensional interactions and vortical flow with emphasis on high speeds . AGARD-AG-252,1980. [4] Lowson M V, Ponton A J. Symmetry breaking in vortex flows on conical bodies[J]. AIAA Journal,1995,30(6):1576~1583. [5] 陆启韶.常微分方程的定性方法和分叉[M].北京:北京航空航天大学出版社,1989.266~270. [6] Wardlow A B, Yanta W J. Asymmetric flowfield development on a slender body at high incidence[J]. AIAA Journal,1984,22(2):242~249.
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