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本文应用NACA二元叶栅试验数据,将平均流面运动方程在任意半径处的圆柱面内映象,由映象面内的假想等价速度三角形选定叶形,根据流面倾斜及负荷变化对二元叶栅性能的影响,用理论和图线的方法对选定叶形进行修正。
In this paper, the NACA binary cascade test data is used to calculate the cylindrical in-plane image of the mean flow motion equation at arbitrary radius. The leaf shape is selected from the imaginary equivalent velocity triangles in the image plane. According to the flow surface tilt and load changes On the performance of binary cascade, the theory and the method of graph line are used to correct the selected leaf shape.