A Review Of The Analytical And Numerical Methods For Axial Compressor Surge

Surge is an unstable phenomenon which is catastrophic to the aero-engines and gas turbines. It can lead to deterioration in performance and engine life as well as mechanical failure, which has long been the research focus of the industrial and academia. One of the most crucial objectives is to figure out the mechanism of the surge and predict its occurrence. Based on the observations in rig tests and engine operation, different theories were proposed to investigate the mechanism and a few classical analytical models were created for modeling and prediction; With the fast development of the numerical methodologies and the boost of the computational resource, Computational Fluid Dynamics (CFD) has been employed to simulate the surge process of the axial fans and compressors. In this review, the principles of the surge phenomenon and general observations are firstly introduced. Thereafter various analytical and CFD methods are presented. The advantages and shortcomings of these methods are listed and discussed. In the conclusions, we proposed potential improvements and technical routes for further study. This paper aims to provides a useful reference for future work on axial flow compressor surges.