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Experimental study of compression waves propagating into two-continuous tunnels
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 Title & Authors
Experimental study of compression waves propagating into two-continuous tunnels
Kim, Hui-Dong; Heo, Nam-Geon; Setoguchi, Toshiaki;
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 Abstract
For the purpose of investigating the impulsive noise at the exit of high-speed railway tunnel and the pressure transients inside the tunnel, experiments were carried out using a shock tube with an open end. A great deal of experimental data were obtained and explored to analyze the peak pressures and maximum pressure gradients in the pressure waves. The effects of the distance and cross-sectional area ratio between two-continuous tunnels on the characteristics of the pressure waves were investigated. The peak pressure inside the second tunnel decreases for the distance and cross-sectional area ratio between two tunnels to increase. Also the peak pressure and maximum pressure gradient of the pressure wave inside the second tunnel increase as the maximum pressure gradient of initial compression wave increases.
 Keywords
Compressible Flow;Compression Wave;High-Speed Railway;Impulsive Noise;Shock Tube;Railway Tunnel;Shock Wave;
 Language
Korean
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