A Study on Surge and Rotating Stall in Axial Compressors (A Summary of the Measuremet and Fundamental Analysis Method)

概要

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In multistage axial compressors used for gas turbine engines, it is important to understand unsteady behaviors such as surge and rotating stall. The purpose of this study is to develop a practical analytical method for both surge and rotating stall in axial compressors. In this paper, firstly, some characteristics of the unsteady phenomena in axial compressors derived from the measurements of test compressors are summarized. Secondly, a numerical method for the unsteady phenomena is described, assuming incompressible flow. A feature of the method is solving the fluid equations by Galerkin's method with the circumferential flow distortion expressed in the form of a high-order Fourier series. Finally, we examine the usefulness of the method, using some results from parameter-vary computations and comparisons with the measured results in a 3-stage test compressor.
一般社団法人日本機械学会の論文
1989-11-15