한국전산유체공학회:학술대회논문집
- 2011.05a
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- Pages.337-342
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- 2011
Numerical Simulation of Pressure Change inside Cabin of a Train Passing through a Tunnel
터널을 통과하는 열차의 객실 내 압력 변동 해석
- Published : 2011.05.26
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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