A Numerical Study on Air Distribution and Flow in the Passenger Cabin of a High-Speed Electric Train

고속전철 객실의 공기 분배 및 기류에 관한 수치해석적 연구

Myong, Hyon-Kook;Yoo, Kyung-Hoon;Hwang, Jungho

  • Received : 2019.03.25
  • Accepted : 2019.03.29
  • Published : 2019.03.31


Numerical analysis has been conducted on three-dimensional airflow distribution in the passenger cabin of a high-speed electric train. The types of air distribution systems investigated in the present study were those of TGV and Shinkansen. The Reynolds-averaged Navier-Stokes equations governing the mass and momentum conservations of the airflow in the cabin were solved by using a finite volume method, which are coupled with the standard $k-{\varepsilon}$ turbulence model equations. Predicted velocity distributions were presented on several selected planes in the passenger cabin. The present three-dimensional simulations were found to show the overall features of the airflow in the passenger cabin fairly well. In particular, it was shown that the type of air distribution for Shinkansen was more suitable for a non-smoking cabin than that for TGV.


Numerical Analysis;High-Speed Electric Train;Passenger Cabin;Air Distribution;Air Flow


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