The effects of blowing ratios on the impingement cooling and film cooling were analyzed to get the effect on the cooling effectiveness of lamilloy.

分析了层板燃气侧、内部及冷气侧的流动和换热特性及其对层板冷却有效性的影响，得到了层板冷却有效性随吹风比变化的曲线。

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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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The film cooling effectiveness contour, laterally averaged film cooling effectiveness, and the flow and temperature distributions near the surface have been obtained.

计算得到了冷却效率云图、冷却效率径向平均值以及近壁面处流场和温度场分布。

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