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A Numerical Study on the Compression Wave Generated by the Train Entering a Tunnel - Effects of the Start Method of a Train -  

Kim, Sa-Ryang (Department of Precision Mechanical Engineering, Kangnung National University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.18, no.12, 2006 , pp. 1039-1046 More about this Journal
Abstract
The numerical simulations on the train entering a tunnel are performed by solving unsteady axi-symmetric problems. To reduce the effects of the pressure wave generated by the train starting abruptly, several starting methods of the train are examined. The high order velocity increase gives better results than those for the linear velocity increase. The high order velocity increase gives good results for the pressure rise by the train entering a tunnel, too. The distance to the train reaches the highest running velocity from the start should be more than 60 m when the train speed is 350 km/h.
Keywords
High speed train; Compression wave; Tunnel; CFD;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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