A New Method for Predicting Performance of Axial-Flow Compressor PUBLIC ACCESS

[+] Author Affiliations
Cai Yuan-Hu, Wang Hong-Ji, Tang Di-Yi, Liu Zhi-Wei

North-Western Polytechnical University, Xian, People’s Republic of China

Paper No. 85-IGT-23, pp. V001T02A007; 7 pages
  • ASME 1985 Beijing International Gas Turbine Symposium and Exposition
  • Volume 1: Aircraft Engine; Turbomachinery
  • Beijing, People’s Republic of China, September 1–7, 1985
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7942-9
  • Copyright © 1985 by ASME


A new method for predicting the off-design performance and the surge line of axial-flow compressors has been developed. In this method the stall points of stages are determined by generalized curves, which are derived from the criterion of rotating stall based on the neutral condition of stability, and the off-design characteristic of stages is calculated by a reasonable iterative method. The stage-stacking method is adopted to obtain the off-design performance of a multistage compressor. The surge line of the compressor is predicted with the “actuator-delay-volume” model and the method of numerical integration. Two examples are given. The results are satisfactory.

Copyright © 1985 by ASME
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