Abstract
Whenhigh-speed trains pass through tunnels, large pressure fluctuations are produced and propagated through the tunnel as waves. These pressure waves affect the comfort of passengers. A number of one-dimensional methods for predicting the pressure waves have been developed and realistic results have been obtained in about forty years. The numerical method is introduced based on one-dimensional, unsteady, compressible, non-homentropic flow model and method of characteristics in the paper. The different applications of this numerical method are presented for the principal features of the flow in a high-speed railway tunnel. The application examples include a train passing through a tunnel and two trains passing each other in a tunnel. The examples have been carried out under the different conditions of the tunnel without or with airshafts, cross-passages, and perforated wall in tunnel.
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Mei, Y.G., Zhou, C.H. (2012). The One-Dimensional Unsteady Flow Prediction Method and Applications on the Pressure Waves Generated by High-Speed Trains Passing through a Tunnel. In: Ni, YQ., Ye, XW. (eds) Proceedings of the 1st International Workshop on High-Speed and Intercity Railways. Lecture Notes in Electrical Engineering, vol 148. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27963-8_36
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DOI: https://doi.org/10.1007/978-3-642-27963-8_36
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