对于不同大小的间隙及环壁静止与旋转的不同壁面条件，揭示了叶顶区流动的细节。

The details of the flow in tip region were predicted under different clearance scale and the condition of both stationary and rotating hub.

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风寂区，又称为背风区-在障碍物，比如在树木、建筑物或其他障碍物背后静止空气的区域。

WIND SHADOW - zone of still air behind obstacles such as trees, buildings or other obstructions.

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冬季接近准静止风区；

Approach surely motionless wind area crop;

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