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Tunnel hood effects on high speed train-tunnel compression wave

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Abstract

This paper reports the numerical research of tunnel hood effects on high speed train-tunnel compression wave. The three-dimensional simulation with real geometry is carried out by the implementation of a commercial computational code. The train speed is 350 km/h. The train/tunnel blockage ratio is 0.115. Nine different types of tunnel hoods were studied. The calculation results showed that the hood length, the hood cross sectional area and the ventilation holes might have significant influence on the first compression wave, and inclined entry or asymmetric distribution of the ventilation holes is not available for alleviating the impulsive wave.

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Authors and Affiliations

  1. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai, China

    Xin-tao Xiang & Lei-ping Xue

Authors
  1. Xin-tao Xiang
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  2. Lei-ping Xue
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Correspondence to Lei-ping Xue.

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Xiang, Xt., Xue, Lp. Tunnel hood effects on high speed train-tunnel compression wave. J Hydrodyn 22 (Suppl 1), 897–904 (2010). https://doi.org/10.1016/S1001-6058(10)60056-X

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  • DOI: https://doi.org/10.1016/S1001-6058(10)60056-X

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