Tunnel and Underground Space (터널과지하공간)

Korean Society for Rock Mechanics and Rock Engineering (한국암반공학회)
권호 표지

Flow Field and Exhaust Gas Recrirculation around a Tunnel Entrance and Exit

터널 입출구 주위의 유동장과 배기가스 재순환

  • 서용권 (동아대학교 기계공학과) ;
  • 이창우 (동아대학교 자원공학과) ;
  • 최윤환 (동아대학교 기계공학과 대학원 과정)
  • Published : 1996.09.01
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Abstract

In this study, the flow field and the recirculation phenomena are investigated numerically for the model around a tunnel entrance and exit. It turns out that the air entering to the tunnel entrance comes mostly from the upper region of the entrance implying that maintaining the air clear in that region is important for the inside-tunnel ventilation. We also found that the recirculation of the exhaust gas from the exit to the entrance has a maximum effect when the flow velocity at the exit is somewhat lower than that of the entrance.

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References

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