Abstract
The effect of stators on the rotating stall inception in axial flow compressor rotors has not been well focused and therefore it has been investigated in the present works. To make the effect of stators clear, numerical analyses in two conditions were conducted: RSA (Rotor-Stator Analysis) and ROA (Rotor-Only Analysis). For RSA, the calculation domain includes stator upstream and downstream of the rotor. For ROA, the calculation domain has no stator. The rotating stall inception point of RSA shows good agreement with the experiment, however, the one of ROA is higher than the experimental inception point. In this paper, the difference between the flow fields for RSA and ROA is discussed and the effect of stators on the rotating stall inception has been elucidated.
