| 摘要 |
The blade has a profile skeleton line and an extended meridian flow line, and is divided into three zones in radial direction. The profile skeleton line is set within the divided zones following predetermined conditions involving the a point of the profile skeleton line, the inclination angles of the front and rear edges of the blade, the dimensions and total curvature of the blade, the angles of the tangent at any point of the profile skeleton line to the middle of the meridian flow line, and the complete length of the profile skeleton line. |
