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.

• Periodical: Applied Mechanics and Materials (Volumes 117-119)
• Pages: 670-673
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.117-119.670
• Online since: October 2011
• Authors: Ming Lu Zhang, Yi Ren Yang, Li Lu, Chen Guang Fan
• Keywords: Dynamic Mesh, High Speed Train (HST), Large Eddy Simulation (LES), Long Tunnel, Passing

References

[1] J.A. Schetz: Annual Review of Fluid Mechanics, Vol. 33 (2001), No.3, P. 371-414.

[2] H. Hemida, S. Krajnovic and L. Davidson: AIAA 2005-5354 (2005).

[3] S. V. Ramakrishnan, C. L. Chen, S. R. Chakravarthy and K.Y. Szema: AIAA 1995-0746 (1995).

[4] J. Anthoine: AIAA Journal, Vol. 47 (2009), No.9, P.2132-2142.

[5] X.L. Zhao and Z.X. Sun: Journal of Hydrodynamics, Vol. 22 (2010), No.5, pp.697-702.

[6] Y.D. Huang, W. Gao and C.N. Kim: Journal of Hydrodynamics, Vol. 22 (2010), No.2, pp.164-172.