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Aerodynamic prediction tools for high-speed trains

Author

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  • A.H. Herbst
  • T.W. Muld
  • G. Efraimsson

Abstract

With high-speed trains, the need for efficient and accurate aerodynamic prediction tools increases, since the influence of the aerodynamics on the overall train performance raises. New requirements on slipstream velocities and head pressure pulse in the revised Technical Specification for Interoperability (TSI) for train speeds higher than 190 km/h are more challenging to fulfil for wide-body trains, like the Green train concept vehicle Regina 250, as well as higher trains, like double-deck trains. In this paper, we give an overview of the results from a project within the Green train programme, where the objective was to increase the knowledge on slipstream air flow of wide body trains at high speeds, to understand the implications of the new requirements on the front shape and to develop a prediction methodology in order to take this into account early in the design cycle. In addition, the front design was in parallel optimized with respect to head pressure pulse and drag.

Suggested Citation

  • A.H. Herbst & T.W. Muld & G. Efraimsson, 2014. "Aerodynamic prediction tools for high-speed trains," International Journal of Rail Transportation, Taylor & Francis Journals, vol. 2(1), pages 50-58, February.
    • Handle: RePEc:taf:tjrtxx:v:2:y:2014:i:1:p:50-58
    DOI: 10.1080/23248378.2013.878295
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    Cited by:

    1. Huoyue Xiang & Yongle Li & Bin Wang & Haili Liao, 2015. "Numerical simulation of the protective effect of railway wind barriers under crosswinds," International Journal of Rail Transportation, Taylor & Francis Journals, vol. 3(3), pages 151-163, August.
    2. Quinn A. Mulligan & Mohammad Barimani & Sheldon I. Green, 2016. "Full-scale freight train underbody aerodynamics with application to track spraying," International Journal of Rail Transportation, Taylor & Francis Journals, vol. 4(3), pages 151-166, August.
    3. J. Y. Zhu & Z. W. Hu & D. J. Thompson, 2017. "The effect of a moving ground on the flow and aerodynamic noise behaviour of a simplified high-speed train bogie," International Journal of Rail Transportation, Taylor & Francis Journals, vol. 5(2), pages 110-125, April.

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