In order to investigate the effect of steam ingestion and swirl distortion on the aerodynamic stability of the compressor

a two-stage low-speed axial compressor was used as the experimental research object. The compressor test bench for steam ingestion and swirl distortion was established. The experimental results showed that steam ingestion caused the inlet total pressure and total temperature distortion. With the increase of rotating speed

the total pressure distortion intensity increased and the total temperature distortion intensity decreased. Steam ingestion caused the decrease of total pressure ratio and stability margin. When the compressor rotating speed was 600 r/min and 800 r/min

the stability margin was reduced by 15% and 63%

respectively. The stability margin decreased more significantly when the steam ingestion and the reverse bulk swirl distortion were combined. When the compressor rotating speed was 600 r/min and 800 r/min

the stability margin was reduced by 630% and 1264%. Numerical simulation investigated the effect of steam ingestion on the experimental compressor. The results showed that the stability margin decreased by 321% and 812% when the compressor rotating speed was 600 r/min and 800 r/min

respectively.