융복합기술연구소 논문집 (Journal of Institute of Convergence Technology)

한국교통대학교 융복합기술연구소 (Institute of Convergence Technology)
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전항력을 이용한 회전 블레이드 냉각성능 향상 방안 연구

Advanced Internal Cooling Passage of Turbine Blade using Coriolis Force

  • 박준수 (한국교통대학교 에너지시스템공학과)
  • Park, Jun Su (Department of Energy System Engineering, Korea National University of Transportation)
  • 투고 : 2016.04.11
  • 심사 : 2016.05.19
  • 발행 : 2016.05.31
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초록

The serpentine internal passage is located in turbine blade and it shows the variety heat transfer distribution. Especially, the Coriolis force, which is induced by blade rotation, makes different heat transfer distribution of the leading and trailing surfaces of serpentine internal passage. The different heat transfer is one of the reasons why the serpentine cooling passage shows low cooling performance in the rotating condition. So, this study tried to design the advanced the serpentine passage to consideration of the Coriolis force. The design concept of advanced serpentine cooling is maximizing cooling performance using the Coriolis force. So, the flow turns from leading surface to trailing surface in advanced serpentine passage to match the direction of Coriolis force and rotating force. We performed numerical analysis using CFX and compared the existing and advanced serpentine internal passage. This design change is induced the high heat transfer distribution of whole advanced serpentine internal passage surfaces.

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참고문헌

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