Volume 35 Issue 6
Jun.  2009
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Liu Peiqing, Kuang Jianmin, Qu Qiulinet al. Effect and mechanism of lift-enhancement of the co-flow jet technology[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(6): 737-740. (in Chinese)
Citation: Liu Peiqing, Kuang Jianmin, Qu Qiulinet al. Effect and mechanism of lift-enhancement of the co-flow jet technology[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(6): 737-740. (in Chinese)

Effect and mechanism of lift-enhancement of the co-flow jet technology

  • Received Date: 07 May 2008
  • Publish Date: 30 Jun 2009
  • The effect and mechanism of lift-enhancement of the co-flow jet technology was investigated by numerically simulating the flow around a co-flow jet airfoil. The Farve-averaged Navier-Stokes equation of unsteady compressible flow and the S-A turbulence model were solved by Fluent software. The results show that the co-flow jet technology remarkably reduces the zero-lift angle of attack of the airfoil, and increases the maximum lift coefficient and the stall angle of attack. The mechanism of lift-enhancement of the co-flow jet technology is analyzed theoretically. Firstly, it increases the circulation around the airfoil by accelerating the speed of the flow on its upper surface. Secondly, it decays the flow separation at the airfoil tail at high angles of attack through the injection of energy inside the boundary layer.

     

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  • [1] Cichy D R, Harris J W, Mackay J K. Flight test of a rotating cylinder flap on a North American Rockwell YOV-10 aircraft . NASA CR-2135, 1972 [2] Modi V J, Fernando M, Yokomizo T. Drag reduction of bluff bodies through moving surface boundary layer control . AIAA-90-0298, 1990 [3] 刘宝杰,杨晓宁,沈遐龄,等.几种前缘流动控制的实验研究[J].工程热物理学报, 1998, 19(4): 444-448 Liu Baojie, Yang Xiaoning, Shen Xialing, et al. Experimental investigation of separation flow control using vortex-generating devices[J].Journal of Engineering Thermophysics, 1998, 19(4): 444-448 (in Chinese) [4] Wood N J, Roberts L. Control of vortical lift on delta wings by tangential leading-edge blowing[J]. Journal of Aircraft, 1988, 25(3): 236-243 [5] Wood N J, Nielsen J N. Circulation control airfoil-past, present, future . AIAA-85-0204, 1985 [6] Englar R J. Circulation control for high lift and drag generation on STOL aircraft[J]. Journal of Aircraft, 1975, 12(5): 457-463  [7] Zha G C, Paxton C. A novel airfoil circulation augment flow control method using co-flow jet . AIAA-2004-2208, 2004 [8] Paxton C, Zha G C. Design of the secondary flow system for a co-flow jet cascade . AIAA-2004-3928, 2004 [9] Zha G C, Carroll B F, Paxton C, et al. High performance airfoil using co-flow jet flow control . AIAA-2005-1260, 2005 [10] 《航空气动力手册》编写组.航空气动力手册第二册[M].北京:国防工业出版社, 1983: 384 Aeronautical Aerodynamics Manual Editor Group. Aeronautical aerodynamics manual volume 2[M].Beijing:National Defense Industry Press, 1983: 384 (in Chinese)
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