半封闭通道射流冲击孔流量系数的实验  

Experimental investigation on discharge coefficient of jet impingement holes within semi-confined channel

作　　者：张泽远[1] 张靖周[1] 杨卫华[1] 

机构地区：[1]南京航空航天大学能源与动力学院,南京210016

出　　处：《航空动力学报》2009年第6期1270-1274,共5页Journal of Aerospace Power

基　　金：航空科学基金(03C52019)

摘　　要：对半封闭通道射流冲击孔的流量系数进行了实验研究,针对单排、双排冲击孔结构,在变化各种几何参数及流动参数的情况下,较为系统地获得了射流孔展向间距与射流孔直径之比、射流孔流向间距与射流孔直径之比、射流冲击间距与射流孔直径之比、射流孔倾角等因素对于流量系数随射流雷诺数的变化曲线.通过对比分析,讨论了各种因素对流量系数的影响.An experimental investigation for determining the discharge coefficient of jet impingement holes within semi-enclosed channel was performed. According to the jet impingement configurations with single row or double row holes, the effects of the holes arrangement and flow parameter on the discharge coefficient were considered, such as： the span holes pitch-to-diameter ratio, the streamwise holes pitch-to-diameter ratio, the impingement distance-to-diameter ratio, the jet oblique angle and the jet Reynolds number. Comparatively, the above factors on the discharge coefficient were discussed.

关 键 词：射流冲击 半封闭通道 流量系数 实验研究 

分 类 号：V233.1[航空宇航科学与技术—航空宇航推进理论与工程] V233.2