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CFD study on passenger and freight trains passing an underground railroad platform

Adelya Khayrullina, Bert Blocken, W.D. Janssen, Jochem Straathof

Abstract

The Dutch railways plan to increase the amount of trains and their running velocities to avoid overcrowded trains during rush hours. Pedestrian discomfort or danger at platforms can be caused by trains which are allowed to pass small railway stations at high speeds up to 140 km/h. A number of these railway stations lay underground, where wind gusts caused by trains are amplified by space confine-ment. The purpose of this study is to evaluate the effect of passing passenger and freight trains on the wind flow induced inside an un-derground tunnel by means of transient CFD simulation.

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Key concepts: Train, Freight trains, Rail freight transport, Passenger train, Marine engineering, Computational fluid dynamics, Engineering, Transient (computer programming)