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케이싱 그루브가 존재하는 축류압축기의 성능특성 연구

A Study on Performance Characteristics of an Axial Compressor with the Casing Groove

  • 최광진 (인하대학교 대학원 기계공학과) ;
  • 김진혁 (인하대학교 대학원 기계공학과) ;
  • 김광용 (인하대학교 기계공학부)
  • 투고 : 2009.12.16
  • 심사 : 2010.02.23
  • 발행 : 2010.04.01

초록

This paper presents a study on the performance of NASA Rotor 37 with the casing grooves based on three-dimensional numerical analysis. Reynolds-averaged Navier-Stokes equations are solved on a hexahedral grid with the shear stress transport model as a turbulence closure model. The governing equations are discretized by a finite volume method. The validation of the numerical results is performed through experimental data for the total pressure ratio and the adiabatic efficiency. The investigation for an axial compressor with a smooth casing and the casing grooves is carried out to compare the performance parameters, for example, surge margin and efficiency, etc. The surge margin is improved in the case of the casing grooves while remarkable improvement of the efficiency is not produced. The result shows that the casing groove is beneficial to expand the operating range of NASA Rotor 37.

키워드

참고문헌

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