It is also pointed out that the topological structure near leading edge depended on not only the gap size but also loading of cascade and thickness of inlet boundary layer.

本文指出在叶栅存在间隙时，前缘产生什么样的拓扑结构不仅取决于相对间隙的大小，同时也取决于叶栅的负荷情况。

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The bump which is equal to the local boundary layer thickness in height can divert the boundary layer effectively. As a result, no obvious low total pressure zone is found at the outlet of the inlet;

进气道出口截面上未发现因附面层吸入而造成的低总压区，这说明高度与当地附面层厚度相当的进口鼓包能有效地隔除附面层中能量较低的气流；

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