北京航空航天大学学报 ›› 2001, Vol. 27 ›› Issue (5): 569-572.

• 论文 • 上一篇    下一篇

旋转平板型叶端气膜冷却实验研究

吴宏伟, 丁水汀, 曹玉璋, 陶智   

  1. 北京航空航天大学 动力系
  • 收稿日期:2000-03-02 出版日期:2001-05-31 发布日期:2010-09-27
  • 作者简介:吴宏伟(1974-),男,山东惠民人,博士生,100083,北京.

Experimental Study on Film Cooling at Rotating Flat Blade Tip

WU Hong-wei, DING Shui-ting, CAO Yu-zhang, TAO Zhi   

  1. Beijing University of Aeronautics and Astronautics, Dept. of Propulsion
  • Received:2000-03-02 Online:2001-05-31 Published:2010-09-27

摘要: 在相似理论指导下, 对旋转系流动与换热方程以及边界条件进行无量纲化, 得出了描述旋转气膜冷却效率与换热系数的一系列准则, 设计并建立了实验台, 解决了从高速旋转部件上引出测试信号而不失真及对旋转试件进行强电加热等问题, 并在旋转情况下, 对常用的平板型叶端气膜冷却效率及其换热系数进行了实验研究, 并总结出可供工程参考的准则公式.

Abstract: The governing conservation equations were non-dimensionalized according to the theory of similarity, a series of analogous criteria were obtained to study rotating film cooling. The rotating components of film cooling were designed and set up. A series of problems, such as signal transfer between rotational and station systems without loss of accuracy, were trickled successfully. Extensive amount of experimental data were obtained to determin film cooling effectiveness and its heat transfer coefficient. The linearity of the heat transfer coefficient and dimensionless temperature ratio was driven. Experimental correlations of the film cooling effectiveness and its heat transfer coefficient at rotating flat blade tip were formulated.

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