Volume 27 Issue 10
Oct.  2012
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TAO Yuan, YU Xian-jun, LIU Bao-jie. Analysis of matching characteristic of transonic tandem stator airfoil and its optimization[J]. Journal of Aerospace Power, 2012, 27(10): 2278-2286.
Citation: TAO Yuan, YU Xian-jun, LIU Bao-jie. Analysis of matching characteristic of transonic tandem stator airfoil and its optimization[J]. Journal of Aerospace Power, 2012, 27(10): 2278-2286.
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Analysis of matching characteristic of transonic tandem stator airfoil and its optimization

  • National Key Laboratory of Science and Technology on Aero-Engine Aero-Thermodynamics, School of Jet Propulsion,Beijing University of Aeronautics and Astronautics, Beijing 100191,China

  • Received Date: 2011-12-16
  • Publish Date: 2012-10-28
    Abstract
  • Matching characteristic of tandem airfoil was researched by using numerical simulation.The forward and aft blade working characteristics were analyzed,and then,an attempt to optimize the blades with the controlled diffusion airfoil was made,by doing which a higher cascade performance was achieved.The result indicates that:the working status of forward blade changes obviously with the incidence,and the incidence range of whole stage almost depends on forward blade alone;aft blade incidence depends on the working status of forward blade deviation.Flow diffusion and turning in aft blade is weakened because of forward blade trailing edge's piling up,thus the working status of aft blade is improved on condition that the forward blade has large flow separations.Based on the analysis of tandem airfoil working characteristics,routine blade was replaced with controlled diffusion airfoil and a good result was achieved.

     

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