锥形排孔气膜冷却实验研究

朱惠人; 许都纯; 刘松龄; 王宝珑

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锥形排孔气膜冷却实验研究
朱惠人, 许都纯, 刘松龄, 王宝珑
西北工业大学航天工程学院

摘要:

对五孔单排锥形孔气膜冷却进行了实验研究，测出了孔排下游的局部换热系数及冷却效率，并研究了喷气雷诺数及吹风比的影响。实验参数范围是：喷气雷诺数Ｒｅ＝１００００～２５０００，吹风比Ｍ＝０．３～２．０，测量分２６个工况进行。

关键词: 锥形孔薄膜冷却传热

DOI：

分类号:V233.5

基金项目:

FILM COOLING EXPERIMENTAL INVESTIGATION OF A ROW OF CONE SHAPED HOLES

Zhu Huiren, Xu Duchun, Liu Songling, Wang Baolong

Coll of Astronautics,Northwestern Polytechnical Univ,Xi′an,710072

Abstract:

Film cooling of a row of five cone shaped holes has been studied experimentallyLocal heat transfer coefficients and film cooling effectiveness of downstream of hole row were measured and the influences of coolant Reynolds number and blowing rate are describedThe ranges of these parameters are:the coolant Reynolds number from 10000 to 25000 and blowing rate from 03 to 20 Measures were performed for 26 conditions

Key words: Cone shaped hole+ Film cooling Heat transfer