Internal pressure fluctuation modelling and passenger pressure comfort analysis of high-speed trains passing through extreme tunnels

Yang, Lu; Chen, Chunjun; Wang, Xiru; Deng, Ji; Zheng, Qin

doi:10.1016/j.buildenv.2024.111200

Building and Environment

2024

DOI: 10.1016/j.buildenv.2024.111200

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Internal pressure fluctuation modelling and passenger pressure comfort analysis of high-speed trains passing through extreme tunnels

Lu Yang,

Chunjun Chen,

Xiru Wang

et al.

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Cited by 7 publications

References 41 publications

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Alleviating tunnel aerodynamics through hybrid suction & blowing techniques applied to train nose sections

Li,

Gu,

Zhao

et al. 2025

Journal of Wind Engineering and Industrial Aerodynamics

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Alleviating tunnel aerodynamics through hybrid suction & blowing techniques applied to train nose sections

Li,

Gu,

Zhao

et al. 2025

Journal of Wind Engineering and Industrial Aerodynamics

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Mitigating aerodynamic effects through segment length allocation of variable cross-section tunnels

Li,

Gu,

Liu

et al. 2025

Tunnelling and Underground Space Technology

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Influence of speed and line spacing on aerodynamic forces in high speed train passing in tunnels

Duan,

Mei,

et al. 2024

Sci Rep

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As train speeds increase, the aerodynamic effects generated during the passage of high-speed trains in tunnels become more pronounced. This article investigates the influence of line spacing on the aerodynamic forces during the passage of high-speed trains in tunnels at different speeds. The research methodology is based on the three-dimensional transient compressible Reynolds-averaged Navier-Stokes (RANS) equations and the k-ω Shear Stress Transport (SST) turbulence model, using overset grid technology to simulate the train passing process in the tunnel. The results show that the aerodynamic drag, lateral force, and lift experienced by the train increase as the line spacing decreases and as the speed increases. line spacing has the greatest impact on aerodynamic lift, followed by lateral force, with drag having the smallest impact. Compared to line spacing, speed has a much larger effect on aerodynamic forces. The aerodynamic forces experienced by the train during tunnel passage are proportional to the square of the train’s speed and have an exponential relationship with the line spacing during train passage.

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Internal pressure fluctuation modelling and passenger pressure comfort analysis of high-speed trains passing through extreme tunnels

Cited by 7 publications

References 41 publications

Alleviating tunnel aerodynamics through hybrid suction & blowing techniques applied to train nose sections

Alleviating tunnel aerodynamics through hybrid suction & blowing techniques applied to train nose sections

Mitigating aerodynamic effects through segment length allocation of variable cross-section tunnels

Influence of speed and line spacing on aerodynamic forces in high speed train passing in tunnels

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