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| The Influence of Baffle Structure on Micro-pressure Wave Generated by High-speed Train Entering a Tunnel |
| ZANG Jun, XUE Lei-Ping |
| (School of Navel Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200030,China) |
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Abstract A compressive wave will be generated when a high-speed train enters a tunnel. Then the compressive wave will travel with the velocity of sound to the outlet of the tunnel and radiate a micro-pressure wave into the field outside of the tunnel. A numerical method was used to simulate the process that the highspeed train enters a tunnel. Also the experimental data was used to verify the computational model. On this base, the influence of the baffle structure on the micro-pressure wave was studied. The result shows that two micropressure waves will be generated with the baffle assembled in the tunnel. Also we the influence of the position and size of the baffle on the micro-pressure wave was got.
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Received: 30 March 2012
Published: 28 February 2013
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