Numerical Computation of 3–D Turbulent Flow Around High–Speed Trains Under Side Wind Conditions
Publication date
2002
Document type
Conference paper
Author
Organisational unit
ISBN
Conference
Project symposium, Paris, 04-05-05.1999
Series or journal
Notes on Numerical Fluid Mechanics and Multidisciplinary Design
Periodical volume
79
Book title
TRANSAERO – A European Initiative on Transient Aerodynamics for Railway System Optimisation, Results of the Brite/Euram Project ‘Transient Aerodynamics for Railway System Optimisation
First page
75
Last page
86
Peer-reviewed
✅
Part of the university bibliography
Nein
Abstract
This paper describes the numerical investigations carried out by LSTM within the TRANSAERO project [1] to estimate side wind effects on a typical high-speed train. Air flow around a detailed geometry of the German InterRegio train was simulated by solving numerically the Reynolds-averaged Navier-Stokes equations, combined with the k — e turbulence model in three dimensions. Finite volume discretization was used to obtain the flow field around the train under different wind conditions and Reynolds numbers up to 1.063 x 10^8. The investigation was extended beyond the study of the flow characteristics to examine new concepts for protecting the trains from side wind. For this purpose, numerical simulation of the flow around a train travelling on an embankment behind a solid noise barrier was carried out. Detailed analysis of the results showed that noise barriers are effective means in reducing side wind induced forces and moments.
Cite as
Khier, W., Breuer, M., Durst, F.: Numerical Computation of 3–D Turbulent Flow Around High–Speed Trains Under Side Wind Conditions, TRANSAERO – A European Initiative on Transient Aerodynamics for Railway System Optimisation, Results of the Brite/Euram Project ‘Transient Aerodynamics for Railway System Optimisation’, B. Schulte–Werning, R. Gregoire, A. Malfatti and G. Matschke (eds.), Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol. 79, pp. 75–86, Springer Verlag, Berlin, (2002).
Version
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