锥形排孔气膜冷却实验研究

FILM COOLING EXPERIMENTAL INVESTIGATION OF A ROW OF CONESHAPED HOLES

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。

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