|Influence of tunnel length on the pressure wave generated by high-speed trains passing each other|
|Wang YW(王一伟); Yang GW(杨国伟); Huang CG(黄晨光); Wang W(王伟)|
|Source Publication||Science China-Technological Sciences|
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, the key factors of this problem were firstly studied based on theoretical analysis. The equation of the worst tunnel length for the global maximum and minimum pressure values was derived. Then, the influence of tunnel length on global minimum pressure and the critical region in which the global minimum pressure varies rapidly were investigated. Finally, a numerical method based on two-dimensional Navier-Stokes equations was established. Typical conditions of two trains passing-by in tunnels of different lengths were simulated. The theoretical and computational results agree with each other closely.
|Keyword||Aerodynamics PassIng In Tunnel Air Pressure Wave Tunnel Length Numerical Simulation|
|Indexed By||SCI ; EI|
|Wang YW,Yang GW,Huang CG,et al. Influence of tunnel length on the pressure wave generated by high-speed trains passing each other[J]. Science China-Technological Sciences,2012,55(1):255-263.|
|APA||王一伟,杨国伟,黄晨光,&王伟.(2012).Influence of tunnel length on the pressure wave generated by high-speed trains passing each other.Science China-Technological Sciences,55(1),255-263.|
|MLA||王一伟,et al."Influence of tunnel length on the pressure wave generated by high-speed trains passing each other".Science China-Technological Sciences 55.1(2012):255-263.|
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