采用恒热流法 ,对 4种不同结构实验板的多斜孔气膜冷却壁表面换热系数进行了实验研究 ,研究的主要影响因素有 :吹风比、孔排列方式、孔间距和孔排距等 ,实验主流雷诺数约为 170 0 0 ,吹风比M =1～ 4。实验结果表明 :引入气膜冷却使表面换热系数明显增强 ;单一实验板换热随吹风比增大而增强 ;在相同单位面积开孔率情况下 ,列间距的影响大于排间距 ,即列间距越小换热越强。 The constant heat flux method was used to study the surface heat transfer coefficient of multi-oblique hole film cooling wall in four kinds of experimental plates. The main influencing factors are: blowing ratio, hole arrangement, hole spacing and hole row spacing , The experimental Reynolds number is about 170 0 0, and the blowing ratio M = 1 ~ 4. The experimental results show that: the introduction of film cooling to significantly increase the surface heat transfer coefficient; a single experimental plate heat transfer with the blowing ratio increases; in the same area perforation rate, the effect of column spacing is greater than row spacing, that column spacing The smaller the heat transfer stronger.