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최재호(J. H. Choi),이진수(J. S. Lee),조현준(H. J. Cho),이성준(S. J. Lee),전승배(S. B. Chen),차봉준(B. J. Cha) 한국유체기계학회 2008 유체기계 연구개발 발표회 논문집 Vol.2008 No.-
This paper presents an aerodynamic design, flow analysis and performance test of a transonic centrifugal compressor for APU applications. The compressor is made up of a centrifugal impeller, a wedge diffuser and a des wirier. The impeller and diffuser for this kind of application should be developed to meet air-bleeding requirement and shaft power extraction requirements, that is, very wide operational range. Aerodynamic design for this purpose is performed and three-dimensional numerical analysis with Reynolds-averaged Navier-Stokes solver is performed to analyze the flows in the impeller, diffuser and deswirler considering the impeller tip clearance. Test module and Jig facilities for the compressor stage performance test are developed. The overall compressor stage performances measured at the test Jig are compared with aerodynamic design results.