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在水洞内使用氢气泡流动显示方法研究环绕压气机叶片前缘的流动。实验结果表明,在前缘圆弧的下游有明显的分离泡存在。前缘圆弧半径相同而前缘楔形角不同的叶片,在同一工况下,前缘楔形角越大分离泡越小,流动分离越弱。
The flow of hydrogen bubbles around the water hole is used to study the flow around the leading edge of the compressor blade. The experimental results show that there is a distinct separation bubble in the downstream of the front arc. In the same working condition, the larger the leading edge wedge angle is, the smaller the separation bubble is and the weaker the flow separation is.