Volume 35 Issue 7
Jul.  2009
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Wu Hong, Meng Henghui, Zhao Zhenming, et al. Numerical investigation of film cooling effectiveness over rotating curved surfaces:blowing ratio and curvature effect[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(7): 812-816. (in Chinese)
Citation: Wu Hong, Meng Henghui, Zhao Zhenming, et al. Numerical investigation of film cooling effectiveness over rotating curved surfaces:blowing ratio and curvature effect[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(7): 812-816. (in Chinese)

Numerical investigation of film cooling effectiveness over rotating curved surfaces:blowing ratio and curvature effect

  • Received Date: 13 Jun 2008
  • Publish Date: 31 Jul 2009
  • Numerical method was conducted to investigate film cooling performance over different rotating surfaces. Compared different models, the influences of curve and blowing ration were obtained with different conditions. The results show that: more film cooling effectiveness is obtained in low blowing ratio, and less effectiveness is occurred in high blowing ratio; For convex surfaces, the increasing curvature radius bring less efficiency; and while for concave surfaces, the increasing curvature radius create more efficiency; The increasing Rotation number weakens curvature effect on convex surfaces, while strengthens curvature effect on concave surfaces.

     

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