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Aerodynamic prediction tools for high-speed trains
Bombardier Transportation, Sweden.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering. KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering. KTH, School of Engineering Sciences (SCI), Centres, VinnExcellence Center for ECO2 Vehicle design.ORCID iD: 0000-0002-9061-4174
2014 (English)In: International Journal of Rail transportation, ISSN 2324-8378, E-ISSN 2324-8386, Vol. 2, no 1Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
Taylor & Francis, 2014. Vol. 2, no 1
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:kth:diva-186278DOI: 10.1080/23248378.2013.878295ScopusID: 2-s2.0-84977620214OAI: oai:DiVA.org:kth-186278DiVA: diva2:926718
Note

QC 20160511

Available from: 2016-05-09 Created: 2016-05-09 Last updated: 2016-08-31Bibliographically approved

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Efraimsson, Gunilla
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Aeronautical and Vehicle EngineeringLinné Flow Center, FLOWVinnExcellence Center for ECO2 Vehicle design
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International Journal of Rail transportation
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