计算结果表明：使用导流叶片后，高压水通过喷嘴后具有了切向速度，并形成了较为明显的旋转射流。

Calculations showed that: with the guide vanes, the high-pressure water would have tangential velocity after it went through the nozzle and form more obvious swirling jet.

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本文提出轴流涡轮不等栅距板式喷嘴直叶片的造型计算方法。首先确定切向平面上的叶型中弧线、叶厚和不等栅距。

This article is intended to provide a method for the profile-calculating of unequally pitched nozzle plate straight blades in the axial-flow turbine.

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