【摘要】 给出一种可展曲面后掠叶片离心式压气机叶轮选型方法。叶轮叶片的压力面吸力面均为可展曲面，可消除加工叶轮叶片面的干涉现象。采用叶片周线表示叶片，画出的叶轮轴向轴测投影图形，可证明此方法是可行的，使用真实感图形绘制的叶轮图形具有更强的立体感和真实感。此外，应用准正交面法计算一组叶轮的三元流场，叶轮流场较好，压气机可望取得较优的性能。以上研究成果为这种压气机叶轮的研制提供了理论基础，为离心式压气机叶轮计算机辅助设计增添新内容。更多还原

【Abstract】 A geometry designing method for developable surfaces backward swept centrifugal compressor was given in this paper. The interference phenomenon during processing impeller blade surfaces can be elimilated because both the pressure and suck surfaces of the impeller blade are developable surfaces. The method is proved to be successful using the axial projection of an impeller drawn by plotting blade contour. The impeller figure drawn with realistic computer graphics has realistic stereo feeling more strongly. The three dimensional now field of a set of impeller has been computed with the the method of Quasi-Orthogonal Surfaces. The results show that the flow field of impeller is better. It is expected that more superior performance of the compressor would be obtained. The new contents of CAD for centrifugal compressor impeller and the theoretical basis are provided by above rescarch results.更多还原