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  5. Flow structure around trains under side wind conditions: A numerical study
 
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Flow structure around trains under side wind conditions: A numerical study

Publication date
2000-02
Document type
Research article
Author
Khier, Walid
Breuer, Michael 
Durst, Franz
Organisational unit
Universität Erlangen-Nürnberg
DOI
10.1016/S0045-7930(99)00008-0
URI
https://openhsu.ub.hsu-hh.de/handle/10.24405/8984
Scopus ID
2-s2.0-0033994227
ISSN
0045-7930
Series or journal
Computers & fluids : an international journal
Periodical volume
29
Periodical issue
2
First page
179
Last page
195
Part of the university bibliography
Nein
  • Additional Information
Abstract
Results of numerical investigations of high Reynolds number flows past a simplified train geometry under different yawing conditions are summarised. Variations of the incidence flow angle from parallel to normal with respect to the direction of the forward train motion resulted in the development of distinctively different flow patterns. To compute numerically the different flow structures, the three-dimensional Reynolds-averaged Navier-Stokes equations, combined with the k-ε turbulence model, were solved on a multi-block structured grid using a finite volume technique. The pressure-velocity fields were coupled using the SIMPLE algorithm. Despite the geometrical simplifications of the computed train configuration, the resulting flow fields show significant complexities.
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