Particular emphasis is given to the development of film cooling, internal cooling technologies and film hole discharge coefficients.

着重介绍了气膜冷却、涡轮叶片内流冷却技术和气膜孔流量系数的研究进展。

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The results show that, for the present investigation conditions, the film cooling effectiveness will be increased with the increase of blowing ratios and the diameter of film hole;

研究结果表明，在本文研究的参数范围内，离散孔切向进气气膜冷却的冷却效率随吹风比和气膜孔直径的增大而上升；

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Using the method of heat-mass transfer analogy, experimental research was carried on to investigate adiabatic film effectiveness of inclined multi-hole full-coverage film cooling.

采用传热传质类比的方法，对多斜孔壁气膜冷却的绝热温比进行了实验研究。

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