Title: Characteristics of Pressure Wave Induced by High Speed Trains Meeting in Open Air
Abstract: The pressure wave caused by two trains' meeting shows great effect on train's running safety and passengers' comfort,so it is necessary to study the pressure wave characteristics.The Reynolds Averaged N-S equations were numerically solved by utilizing CFD methods in order to simulate the three-dimensional unsteady China-made trains' meeting process at different speeds and with different railway distances.The time-history of pressure wave and side force were obtained.Results show that the maximal pressure wave amplitude is located at the tail of the train,the same level with the nose;two strong side forces and one maximum suction force occur between the two trains in the whole process of the trains' meeting which will have a negative effect on the stabilities of the high-speed trains;the pressure wave amplitude and side force increase as the speed increases and decrease as the railway distance becomes smaller.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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Cited By Count: 2
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