Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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NUMERICAL SIMULATION OF PRESSURE CHANGE INSIDE CABIN OF A TRAIN PASSING THROUGH A TUNNEL

터널을 통과하는 열차의 객실 내 압력 변동 해석

  • Received : 2011.07.07
  • Accepted : 2012.03.22
  • Published : 2012.03.31
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Abstract

The pressure transient inside the passenger cabin of high-speed train has been simulated using computational fluid dynamics(CFD) based on the axi-symmetric Navier-Stokes equation. The pressure change inside a train have been calculated using first order difference approximation based on a linear equation between the pressure change ratio inside a train and the pressure difference of inside and outside of the train. The numerical results have been assessed for the KTX train passing through a 9km long tunnel of Wonju-Kangneung line at the speed of 250km/h assuming that the train is satisfying the train specification for airtightness required by the regulation.

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References

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