Effect of train length on fluctuating aerodynamic pressure wave in tunnels and method for determining the amplitude of pressure wave on trains

@article{Niu2018EffectOT,
  title={Effect of train length on fluctuating aerodynamic pressure wave in tunnels and method for determining the amplitude of pressure wave on trains},
  author={Jiqiang Niu and Dan Zhou and Feng Liu and Yanping Yuan},
  journal={Tunnelling and Underground Space Technology},
  year={2018}
}
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34 Citations
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34 Citations

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Analysis of aerodynamic effects and load spectrum characteristics in high-speed railway tunnels
Comparative study on the unsteady slipstream induced by a single train and two trains passing each other in a tunnel
Influences of High-Speed Train Speed on Tunnel Aerodynamic Pressures
To comprehensively investigate the characteristics of aerodynamic pressures on a tunnel caused by the whole tunnel passage of a high-speed train at different speeds, we conduct a series of…
Aerodynamic effects of a high-speed train travelling through adjoining & separated tunnels
Numerical study on comparison of detailed flow field and aerodynamic performance of bogies of stationary train and moving train
In this study, the aerodynamic forces on a stationary train and moving train as well as the flow fields at the bottom of the trains were compared and analysed. In addition, the numerical algorithm…
Aerodynamic Effects Produced by a High-Speed Train Traveling through a Tunnel Considering Different Car Numbers
The geometrical configurations of high-speed trains and tunnels are symmetric. However, the aerodynamic pressure acting on tunnel walls induced by high-speed trains passing through is unsymmetric.…
Numerical study on the impact of Mach number on the coupling effect of aerodynamic heating and aerodynamic pressure caused by a tube train
Effect of localized high temperature on the aerodynamic performance of a high-speed train passing through a tunnel
Influence of the enlarged portal length on pressure waves in railway tunnels with cross-section expansion
Moving model analysis on the transient pressure and slipstream caused by a metro train passing through a tunnel
TLDR
It was found that the increase of the train speed would increase the transient pressure and slipstream speed, but it did not effect their spatial distribution.
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References

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The prediction of the pressure wave amplitude produced when two trains pass each other in the tunnel is important to the train design for airtightness and tunnel conditions in China. In this paper,…
Numerical simulation of two trains intersecting in a tunnel
Numerical simulation of aerodynamic performance of a couple multiple units high-speed train
ABSTRACT In order to determine the effect of the coupling region on train aerodynamic performance, and how the coupling region affects aerodynamic performance of the couple multiple units trains when…
Nature of pressure waves induced by a high-speed train travelling through a tunnel
A Numerical Study of the Train-Induced Unsteady Airflow in a Subway Tunnel with Natural Ventilation Ducts Using the Dynamic Layering Method
Numerical study on the aerodynamic pressure of a metro train running between two adjacent platforms
Aerodynamics of high speed trains passing by each other
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