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임형수(Hyung Soo Lim),임영천(Young Cheon Lim),송성진(Seung Jin Song),강신형(Shin Hyoung Kang),양수석(Soo Seok Yang) 한국유체기계학회 2009 유체기계 연구개발 발표회 논문집 Vol.2009 No.-
In this research, experimental investigation has been observed to enhance 4 stage axial compressor stability by steady air injection. By injecting air in front of 1st stage rotor tip, compressor operation range was extended about 4% based on no injection condition. The stall onset stage, signal frequency and stall cell feature were analyzed and these characters were compared with no injection condition's. Even though, no significant different was detected in steady air injection, except stall onset performance point, this results can be used as a reference for selecting injection stages in multistage compressor.