A Study of Aerodynamic Effects of High-Speed Trains through Tunnels

Jing Zhao; Ren Xian Li

doi:10.4028/www.scientific.net/AMM.94-96.1663

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 94-96A Study of Aerodynamic Effects of High-Speed...

A Study of Aerodynamic Effects of High-Speed Trains through Tunnels

Abstract:

In this paper, the aerodynamic effects of high-speed train passing in tunnels are investigated in numerical calculation method of hydromechanics. According to the actual situation of flow filed when the train through the tunnel, the flow geometry model is set up. The flow problem is described by Navier-Stokes equations of unsteady viscous compressible fluid and k-e two equations turbulent model. Thereby the aerodynamic effects of the train through the tunnel are analyzed comprehensively. The changes of the air pressure in tunnel caused by high-speed train entering into the tunnel are mainly analyzed. In addition, the mechanical characteristics of carriages when two train in the tunnel passing through each other are analyzed.

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Periodical:

Applied Mechanics and Materials (Volumes 94-96)

Pages:

1663-1667

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.94-96.1663

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Online since:

September 2011

Authors:

Jing Zhao, Ren Xian Li

Keywords:

Aerodynamic, High Speed Train (HST), Numerical Analysis, Railway Tunnels

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