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다단 축류터빈 공력설계 및 공력성능 향상기법

Design Strategies for Multi-Stage Axial Turbines

  • 강영석 (한국항공우주연구원 엔진요소기술팀) ;
  • 이동호 (한국항공우주연구원 엔진요소기술팀) ;
  • 차봉준 (한국항공우주연구원 엔진요소기술팀) ;
  • 양수석 (한국항공우주연구원 항공엔진실)
  • Kang, Young-Seok (Korea Aerospace Research Institute, Engine Component Technology Team) ;
  • Rhee, DongHo (Korea Aerospace Research Institute, Engine Component Technology Team) ;
  • Cha, BongJun (Korea Aerospace Research Institute, Engine Component Technology Team) ;
  • Yang, SooSeok (Korea Aerospace Research Institute, Aero-propulsion Division)
  • 투고 : 2013.12.05
  • 심사 : 2014.04.30
  • 발행 : 2014.10.01

초록

This paper describes a brief aerodynamic design procedure of multi-stage axial turbine. The design procedure was established including one dimensional scratch design, through flow analysis with empirical correlations, two dimensional airfoil design and three dimensional airfoil stacking. Detailed aerodynamic performance assessment was done with full three dimensional CFD method at the design and off design conditions to construct turbine performance map. With the present method, aerodynamic design procedure of 1st and 2nd stages of high pressure turbine for 10,000lbf class turbofan engine was introduced.

키워드

참고문헌

  1. Kracker S. C., Okapuu U, 1982, A mean line prediction method for axial turbine efficiency," Trans. ASME Journal of Engineering for Power, Vol. 104, pp. 111-119. https://doi.org/10.1115/1.3227240
  2. Moustapha S. H., Kracker S. C., Tremblay B., 1990, "An improved incidence losses prediction method for turbine airfoils," Trans. ASME Journal of Turbomachinery, Vol. 112, pp. 267-276. https://doi.org/10.1115/1.2927647
  3. Tremblay B., Sjolander S. A., Moustapha S. H., 1990, "Off-design performance of a linear cascade of turbine blades," ASME Paper No. 90-GT-314.
  4. 강영석, 차봉준, 이동호, 2012, "중소형 항공기용 터보팬 엔 진의 고압터빈 공력설계," 2012 유체기계 연구개발 발표회논문집.
  5. 강영석, 이동호, 차봉준, 2013, "노즐 슈라우드 벽면 형상이 터빈 내부 유동장에 미치는 영향," 대한기계학회 유체공학부문 2013년도 춘계학술대회.
  6. 한국항공우주연구원, 2013, 중소형 항공기용 터보팬 엔진의 고압터빈 냉각 설계기술 개발 및 시험평가 기술 구축. 2차년도 보고서.

피인용 문헌

  1. 2014년 가스·스팀터빈 분야 연구동향 vol.18, pp.2, 2014, https://doi.org/10.5293/kfma.2015.18.2.082
  2. Unsteady Conjugate Heat Transfer Analysis of a Cooled Turbine Nozzle with High Free Stream Turbulence vol.18, pp.2, 2017, https://doi.org/10.5139/ijass.2017.18.2.279