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(一) 前言为了设计一个高效率的压气机叶轮,必须了解压气机叶轮内部流道的流动情况,而叶轮中实际气体的流动情况则是非常复杂的三元流动。目前对叶轮机械进行三元流动分析的方法有三种:矩阵法、流线曲率法(通常称为准正交线法或准正交面法)、有限元素法。本文采用流线曲率法对压气机叶轮中的三元流进行分析和计算,概述了如何应用流线曲率法来计算压气机叶轮中心流面、压力面及吸力面的速度解,给出了用本方法所计算的高压比增压器
(A) Introduction In order to design an efficient compressor impeller, it is necessary to understand the flow of the flow path inside the compressor impeller, and the actual gas flow in the impeller is a very complicated ternary flow. At present, there are three methods for the analysis of impeller mechanical flow: matrix method, streamline curvature method (usually called quasi-orthogonal method or quasi-orthogonal method), finite element method. In this paper, the flow curvature method is used to analyze and calculate the ternary flow in the compressor impeller. The flow curvature method is introduced to calculate the velocity solution of the center flow surface, pressure surface and suction surface of the compressor impeller. The method calculates the high pressure ratio supercharger