Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Two-Dimensional Flow Behavior Through a Stage of an Axial Compressor

축류 압축기내의 2차원 유동 특성

  • Hong, Seong-Hun (Dept. of Mechanical Engineering, Graduate School of Pohang University of Science and Technology) ;
  • Baek, Je-Hyeon (Dept. of Mechanical Engineering, Pohang University of Science and Technology)
  • 홍성훈 (포항공과대학교 기계공학과 대학원) ;
  • 백제현 (포항공과대학교 기계공학과)
  • Published : 1996.08.01
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Abstract

The flow in the turbomachinery is very unsteady due to the stator-rotor interaction. It has been indicated that the stator-rotor interaction has three distinct causes of unsteadiness: that is, the viscous vortex shedding, wake rotor interaction and potential stator-rotor interaction. In this paper, the mechanism of unsteady potential interaction and wake interaction in the stator-rotor stage flow is numerically investigated in two-dimensional view point. The numerical technique used is the upwind scheme of Van Leer's Flux Vector Splitting(FVS) and cubic spline interpolation is applied on zonal interface. Then, the flow field of a compressor stage composed of NACA 65410 is analyzed. Flow fields are found to be simulated reasonably by this method and the sensitivity due to back-pressure variation is more stronger than rotor-velocity variation.

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