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Volume 38 Issue 7
Jul.  2012
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Journal of Beijing University of Aeronautics and Astronautics  > 2012  >  (7): 873-876,881.
Factor analysis used in pulsed infrared thermographic NDT[J]. Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(5): 622-626. (in Chinese)
Citation: Liu Peiqing, Wang Yaping, Liu Jie, et al. Vortex interaction mechanism over close-coupled canard configuration[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, (7): 873-876,881. (in Chinese)
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Vortex interaction mechanism over close-coupled canard configuration

  • School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 19 Jun 2011
  • Publish Date: 30 Jul 2012
    Abstract
  • Numerical investigation on the vortical structure was carried out on a simplified close-coupled canard configuration with a 50° swept delta wing and a 50° swept delta canard at various angle of attack (AOA) by solving Reynolds averaged Navier-Stokes(N-S) equations at 2.4×105 Reynolds number. The vortex evolution was analyzed by comparison with wind tunnel force measurement and water tunnel dye visualization. The dominant interaction mechanism was figured out in three AOA regions which were classified by the canard effect. Although the vortical flowfield are complex, the vortex interaction effect could be cataloged into three mechanism named induction, convolution and burst. The analysis indicates that the canard vortex would perform a favorable impact on the main wing vortex especially at the medium and high AOA region, where the convolution effect is dominant and the lift is enhanced most significantly.

     

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    • References(14)
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