Analysis of high speed train flow structures under crosswind

Terence Avadiar, James Bell, David Burton, Heman Cormaty, Chao Li

Research output: Chapter in Book/Report/Conference proceedingConference PaperOtherpeer-review

Abstract

The flow structures along the length of a High-Speed Train (HST) under crosswind are investigated in a wind tunnel, through flow visualisations and velocity measurements at various angles of yaw. Surface visualisations show the development of a streamwise vortex originating at the nose that travels longitudinally along the length of the train. In addition, the hypothesis that flow structures repeat when the boundary layer (BL) on the roof of the HST model is pushed off is tested, with a view to analysing the effectiveness of using shortened HST models to accurately represent full-length trains in a wind tunnel. It would appear that using a shortened train model cannot completely model full-scale HSTs at realistic yaw angles using this theory.
Original languageEnglish
Title of host publicationProceedings of the ASME/JSME/KSME Joint Fluids Engineering Conference (AJKFluids 2015)
Subtitle of host publication26-31 July 2015, Seoul, South Korea
PublisherAmerican Society of Mechanical Engineers (ASME)
Number of pages6
Volume1
ISBN (Print)9780791857212
DOIs
Publication statusPublished - 2015
EventASME-JSME-KSME Joint Fluids Engineering Conference (AJK 2015) - Seoul, Korea, Dem Rep of (North)
Duration: 26 Jul 201531 Jul 2015

Conference

ConferenceASME-JSME-KSME Joint Fluids Engineering Conference (AJK 2015)
Abbreviated titleAJK 2015
CountryKorea, Dem Rep of (North)
CitySeoul
Period26/07/1531/07/15
OtherAJK2015 is a global event that will bring together engineers and researchers from academia, research institutions and industry to participate in a wide-range of symposia and fora dedicated to relevant fluids engineering topics. The AJK2015 conference is co-sponsored by the ASME Fluids Engineering Division and will serve as the FED Summer Meeting (FEDSM) for 2015.

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