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Volume 38 Issue 7
Jul.  2012
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Journal of Beijing University of Aeronautics and Astronautics  > 2012  >  (7): 853-856.
Deng Xueying, Wu Peng, Wang Yankuiet al. Flow separation control on control surface by blowing from leading edge of control surface[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, (7): 853-856. (in Chinese)
Citation: Deng Xueying, Wu Peng, Wang Yankuiet al. Flow separation control on control surface by blowing from leading edge of control surface[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, (7): 853-856. (in Chinese)
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Flow separation control on control surface by blowing from leading edge of control surface

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

  • Received Date: 10 Jun 2011
  • Publish Date: 30 Jul 2012
    Abstract
  • The wind tunnel experimental research on the flow separation control of control surface by blowing from leading edge of control was performed in D4 wind tunnel at Beihang University, in order to reduce the blowing air consumption. Blowing position was set at the separation point. The evolvement courses of flow field with the increasing of blowing momentum coeffecient was revealed by using particle image velocimetry(PIV) technique. The suction peak of control surface is increased as a result of ejector action which is caused by blowing, it is the main mechnisim of lift enhancement of leading edge blowing. The experiment results also indicate that not only the lift of control surface is enhanced, but also the drag is reduced.

     

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