Aerodynamic Comfort Analysis of High-Speed Trains Passing each other at the same Speed through a Tunnel

Ya Guang Yan; Qing Shan Yang; Jian Zhang

doi:10.4028/www.scientific.net/AMM.90-93.2147

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 90-93Aerodynamic Comfort Analysis of High-Speed Trains...

Aerodynamic Comfort Analysis of High-Speed Trains Passing each other at the same Speed through a Tunnel

Abstract:

On the basis of the three-dimensional,compressible,unsteady-state,viscous N-S Equation and k-ε turbulence model,the simulation calculation is made with the finite volume method on the aerodynamic effect of two high-speed trains passing each other at the same speed through a tunnel,simulating the pressure change,analysising regularity of the pressure,researching comfort in the train.The following conclusions have been drawn from research:The maximum of transient pressure is concerned with the meeting point,when the two high-speed trains meet in tunnel.When the length,the speed and the sealing factor of the train are same,the transient pressure is maximum with the trains meeting at the midpoint of tunnel.When the tunnel length,the speed of the train,the sealing factor and the point of meeting are same,the transient pressure of the longer train is maximum.When the sealing factor is greater than 15s,the standard of permissible pressure (1250Pa\3s) can be satisfied with all circumstances.

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Periodical:

Applied Mechanics and Materials (Volumes 90-93)

Pages:

2147-2151

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.90-93.2147

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Online since:

September 2011

Authors:

Ya Guang Yan, Qing Shan Yang, Jian Zhang

Keywords:

Comfort, High Speed Train (HST), Meeting, Tunnel

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