The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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Stall Inception Characteristics of Axial Compressor Varying IGV Stagger

축류압축기의 입구안내깃 각도에 따른 스톨선구신호 특성 연구

  • 배효조 (서울대학교 기계항공공학부 대학원) ;
  • 임형수 (서울대학교 기계항공공학부 대학원) ;
  • 송성진 (서울대학교 기계항공공학부) ;
  • 강신형 (서울대학교 기계항공공학부) ;
  • 양수석 (한국항공우주연구원 첨단추진기관팀)
  • Received : 2011.11.04
  • Accepted : 2011.12.23
  • Published : 2012.02.01
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Abstract

Stall inception characteristics are researched to understand stall well. To realize different stall inception patterns, IGV stagger angle was changed. At design IGV stagger angle, spike, which is short length scale, is observed. Decreasing IGV stagger angle, spike changes to mode, which is long length scale, and further decreasing get multi cell. Compressor maps for each IGV stagger are shown to compare different stall inceptions. The characteristics of both spike and mode are confirmed in this experiment. Furthermore, transient from spike to mode is find. multi cell has 4cells and is little bit faster than mode. and multi cell shows 2nd, 3rd characteristics on compressor map.

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References

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