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

  • 제29권6호
  • /
  • Pages.696-702
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  • 2005
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  • 1226-4881(pISSN)
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  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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입사각이 터빈 동익 끝벽 열전달에 미치는 영향

Effect of Incidence Angle on the Endwall Heat Transfer Within a Turbine Rotor Passage

  • 박진재 (금오공과대학교 대학원 기계공학과) ;
  • 이상우 (금오공과대학교 기계공학부)
  • 발행 : 2005.06.01
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초록

The effect of incidence angle on the endwall heat (mass) transfer characteristics within a turbine rotor cascade passage has been investigated by employing the naphthalene sublimation technique. The experiments are carried out at the Reynolds number of $2.78{\times}10^5$ for two incidence angles of -5 and 5 dog. The result shows that the incidence angle has a considerable influence on the transport phenomena over the endwall. The positive incidence angle tends to promote development of the pressure-side leg of a leading-edge horseshoe vortex. The endwall thermal load is augmented by 7.5 percents at i = -5 deg but is reduced by 2.5 percents at i = 5 deg, in comparison with that at the design condition.

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참고문헌

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