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本文介绍在平面叶栅风洞上进行的“孔窝群”端壁叶栅和原始（光滑）端壁叶栅对比试验研究结果。试验研究结果表明，采用“孔窝群”端壁叶栅可以达到下述作用和效果：阻尼气流横向迁移，延缓通道涡的形成或减弱通道涡的强度，使叶栅端区出口气流角过转减少且沿展向分布更为均匀；可以适度增加叶栅端区掺混，从而降低端区低能堆积，降低大攻角（例如：５°，８°和１２°时）状态下的叶栅损失系数；在攻角５°至１２°范围内，“孔窝群”端壁叶栅流通能力增加明显，这有利于改善压气机和发动机性能
This paper presents the results of a comparative study of the “hole nest” end cascade cascade and the original (smooth) end cascade cascade on a flat cascade wind tunnel. Experimental results show that the use of “hole nest group” endwall cascade can achieve the following effects and effects: the lateral flow of damping gas flow to delay the formation of channel vortex or weaken the channel vortex strength, so that the exit angle of blade exit over Reduce and distribute more evenly in the span direction; can moderately increase the mixing of blade end regions, thereby reducing the accumulation of low energy in the end regions and reducing the cascade losses under the condition of large angles of attack (for example, 5 °, 8 ° and 12 °) Coefficient; in the angle of attack 5 ° to 12 ° range, “hole nest group” end cascade flow capacity increases significantly, which is conducive to improving the performance of the compressor and the engine