Volume 23 Issue 4
Apr.  2008
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XU Quan-hong, XU Jian, LIN Yu-zhen, LIU Gao-en. Influence of aerodynamic parameter on the temperature gradient and cooling efficiency for effusion wall cooling method[J]. Journal of Aerospace Power, 2008, 23(4): 647-650.
Citation: XU Quan-hong, XU Jian, LIN Yu-zhen, LIU Gao-en. Influence of aerodynamic parameter on the temperature gradient and cooling efficiency for effusion wall cooling method[J]. Journal of Aerospace Power, 2008, 23(4): 647-650.
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Influence of aerodynamic parameter on the temperature gradient and cooling efficiency for effusion wall cooling method

  • National Key Laboratory on Aero-engines, School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083

  • Received Date: 2007-03-28
  • Rev Recd Date: 2007-07-25
  • Publish Date: 2008-04-28
    Abstract
  • As one of the most important factors influencing the combustor life-span,the temperature gradient of the effusion wall,as well as the cooling efficiency were investigated experimentally under the guidance of similarity theory.The effects of the temperature ratio of the main flow to the cooling air,the speed ratio of the cooling air to the main flow and the speed of the main flow were analyzed and discussed.IRthermograph was used to perform local measurements of the surface temperature field.The results reveal that these parameters which are investigated in this paper have strong influence on the temperature gradient and the cooling efficiency.

     

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