A new model is presented for calculating the end-wall boundary layer and its blade force defect inside the axial compressor cascade, based on theoretical analysis.

通过理论分析提出一种考虑叶片端部间隙影响的叶片力亏损模型，并对三种轴流压气机叶栅的端壁边界层及叶片力亏损进行了数值计算。

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If more force is needed, it is harder to control the blade.

而需要的力气越大，刀片就越难以控制。

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As a result of its change of direction across the blade, the steam will impart a force to the blade.

由于蒸汽通过叶片时改变方向，结果对叶片产生了作用力。

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Defenseman Ryan McDonagh chopped his stick down across the crossbar with such force that he broke off the blade.

WSJ: Mixed Emotions for Rangers as Season Ends

As long as it's engaged in light-hurling bouts of force, or motorcycle chases through a landscape so ominously enveloping it looks like "Blade Runner" after gentrification, "TRON: Legacy" is a catchy popcorn pleasure.

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