한국추진공학회지 (Journal of the Korean Society of Propulsion Engineers)

  • 제8권4호
  • /
  • Pages.1-8
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  • 2004
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  • 1226-6027(pISSN)
  • /
  • 2288-4548(eISSN)
한국추진공학회 (The Korean Society of Propulsion Engineers)
권호 표지

노즐 설치각에 따른 초음속 터빈 익렬의 유동 특성에 대한 실험적 연구

An Experimental Study on the Flow Characteristics of a Supersonic Turbine Cascde as Nozzle Installation Angle

  • 발행 : 2004.12.01
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초록

본 연구에서는 초음속 충동형 터빈 익렬의 유동특성을 알아보기 위해 소형 초음속 풍동을 설계하였으며 Single pass Schlieren system을 이용하여 유동을 가시화하였다. 실험은 3차원 초음속 노즐과 익렬을 조합하여 노즐 설치각에 따라 실시하였다. 실험을 통해 충격파를 포함한 복잡한 유동 형태와 노즐-익렬, 충격파-경계층 상호작용 등을 관찰할 수 있었다.

In this paper, a small supersonic wind tunnel is designed and built to study the flow characteristics of a supersonic impulse turbine cascade. The flow is visualized by means of a sin91e pass Schlieren system. The supersonic cascade with 3-dimensional supersonic nozzle was tested over a wide range of nozzle installation angle. Highly complicated flow patterns including shocks, nozzle-cascade interaction and shock boundary layer interactions are observed.

키워드

참고문헌

  1. Colclough, C. D., 'Design of turbine blades suitable for supersonic relative inlet velocities and the investigation of their performance in cascades: part I theory and design,' Journal of mechanical engineering science, Vol. 8 No.1. 1966
  2. Colclough, C. D., 'Design of turbine blades suitable for supersonic relative inlet velocities and the investigation of their performance in cascades: part II experiments, results and discussion,' Journal of mechanical engineering science, Vol. 8 No.2, 1966
  3. Stratford, B. S. and Sansome, G. E., 'Tunnel tests on a double cascade to determine the interaction between the rotor and the nozzles of a supersonic turbine,' N.G.T.E. M 359, 1962
  4. Stratford, B. S. and Sansome, G. E., 'Theory and tunnel tests of rotor blades for supersonic turbines,' R&M 3275, 1965