周向槽机匣处理的二维理论分析

2-D THEORETICAL ANALYSIS OF CIRCUMFERENTIAL GROOVED CASING TREATMENT

本文在分析周向槽机匣处理二维简化模型基础上 ,采用边界元方法为分析提供边界条件 ;发展了一个不含迭代过程的计算任意回转面上叶栅流场的快速准确程序。文中详细分析了处理机匣各种几何尺寸及叶排参数对扩稳效果的影响 ;建立了一套便于工程设计与分析周向槽机匣处理的快速实用的定量方法。

On the basis of analysing the 2 D simplified extended stability model of circumferential grooved casing treatment,a new rapid practical method for engineering design and analysis is developed.An exact and time-saving program without repeat process is written for calculating the cascade flowfield on the arbitrary rotary surface.In the program the boundary element method is used to determine the initial flowfield for analysing the model.The effects of structural and performance parameters of circumferential grooved casing treatment on the stability of the compressor are discussed.This method features definiteness of physical meaning and ease in practical application.The new method and technique are provided to design and analyze the circumferential grooved casing treatment equipment.