Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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A Numerical Study on the Compression Wave Generated by the Train Entering a Tunnel - Effects of the Start Method of a Train -

열차가 터널에 진입할 때 발생하는 압축파에 대한 수치해석 -열차의 출발방법에 따른 영향에 대한 고찰 -

  • Kim, Sa-Ryang (Department of Precision Mechanical Engineering, Kangnung National University)
  • 김사량 (강릉대학교 정밀기계공학과)
  • Published : 2006.12.10
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Abstract

The numerical simulations on the train entering a tunnel are performed by solving unsteady axi-symmetric problems. To reduce the effects of the pressure wave generated by the train starting abruptly, several starting methods of the train are examined. The high order velocity increase gives better results than those for the linear velocity increase. The high order velocity increase gives good results for the pressure rise by the train entering a tunnel, too. The distance to the train reaches the highest running velocity from the start should be more than 60 m when the train speed is 350 km/h.

Keywords

References

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