Paper Title:
Numerical Simulation of Two High Speed Trains Passing by each other in a Long Tunnel
  Abstract

Large eddy simulation (LES) was made to solve the flow around two simplified CRH2 high speed trains passing by each other at the same speed in a long tunnel base on the finite volume method and dynamic layering mesh method and three dimensional incompressible Navier-Stokes equations. Wind tunnel experimental method of resting train with relative flowing air and dynamic mesh method of moving train were compared. The results of numerical simulation show that the flow field structure around train is completely different between wind tunnel experiment and factual running. Two opposite moving couple of point source and point sink constitute the whole flow field structure during the high speed trains passing by each other. All of streamlines originate from point source (nose) and finish with the closer point sink (tail). The flow field structure around train is similar with different vehicle speed in a long tunnel, and they have a little difference with on the ground.

  Info
Periodical
Chapter
Chapter 4: Fluid Mechanics and Thermodynamics
Edited by
Huixuan Zhang, Ye Han, Fuxiao Chen and Jiuba Wen
Pages
670-673
DOI
10.4028/www.scientific.net/AMM.117-119.670
Citation
M. L. Zhang, Y. R. Yang, L. Lu, C. G. Fan, "Numerical Simulation of Two High Speed Trains Passing by each other in a Long Tunnel", Applied Mechanics and Materials, Vols. 117-119, pp. 670-673, 2012
Online since
October 2011
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Price
$32.00
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