elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Datenschutz | Kontakt | English
Schriftgröße: [-] Text [+]

Experimental Investigation of the Flow Field Underneath a Generic High-Speed Train and the Effects of Ground and Train Roughness

Jönsson, Mattias und Loose, Sigfried (2015) Experimental Investigation of the Flow Field Underneath a Generic High-Speed Train and the Effects of Ground and Train Roughness. In: The Aerodynamics of Heavy Vehicles III: Trucks, Buses and Trains Lecture Notes in Applied and Computational Mechanics, 79 (1). Springer International Publishing. Seiten 21-36. doi: 10.1007/978-3-319-20122-1_2. ISBN 978-3-319-20121-4. ISSN 1613-7736.

Dieses Archiv kann nicht den Volltext zur Verfügung stellen.

Offizielle URL: http://www.springer.com/us/book/9783319201214

Kurzfassung

Results obtained from two component Particle Image Velocimetry (PIV) measurements on three different 1:50 generic high-speed train configurations hauled through a water towing tank over a smooth (Plexiglas) and a rough (grinding belt) ground at a specd of 4 m/s are presented. Principally, the three different generic highspeed train configurations arc based on the samc model (front car, two cars and tail car). The smooth generic high-speed train configuration (smooth GHSTC) reflects no bogies and covers the bogie cut outs and inter car gaps, the rough generic highspeed train configuration (rough GHSTC) is obtained by removing the bogies and leave the bogie cut outs and inter car gaps open and for the generic high-speed train configuration (GHSTC) the bogies are not removed but the inter car gaps are left open. A PIV set-up was chosen that the light sheet defines a vertical plane (XZ) between the ground and the train in the symmetry line of the train. Comparing the PIV results obtained for thc GHSTC with full scale measuremcnts, it was found that the same ftow structures develop in the vicinity of the head and the tail of the train. But, the measured underfloor U-velocity of the downscaled model measurements did not reach the same value as those measured for the full scale high-speed train. The reason which is ascribed to the better aerodynamic underframe of the train model in the downscaled model measurements. The flow field underneath the GHSTC was fully developed at the bcginning of the second car, in agreement to the full scale measurcments. For the three train configurations three different flow fields underneath the train were obtained. The lowest vclocities were found for the smooth GHSTC and the highest for thc rough GHSTC. Further, the ground roughness changed the flow fields underneath the different train configurations.

elib-URL des Eintrags:https://elib.dlr.de/98913/
Dokumentart:Beitrag im Sammelband
Zusätzliche Informationen:Proceedings of "The Aerodynamics of Heavy Vehicles III: Trucks, Buses and Trains", held September, 2010 in Potsdam, Germany, eBook ISBN: 978-3-319-20122-1
Titel:Experimental Investigation of the Flow Field Underneath a Generic High-Speed Train and the Effects of Ground and Train Roughness
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Jönsson, MattiasMattias.Joensson (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Loose, SigfriedSigfried.Loose (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:2015
Erschienen in:The Aerodynamics of Heavy Vehicles III: Trucks, Buses and Trains
Referierte Publikation:Ja
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Band:79
DOI:10.1007/978-3-319-20122-1_2
Seitenbereich:Seiten 21-36
Herausgeber:
HerausgeberInstitution und/oder E-Mail-Adresse der HerausgeberHerausgeber-ORCID-iDORCID Put Code
Dillmann, AndreasDLRNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Orellano, AlexanderBombardierNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Verlag:Springer International Publishing
Name der Reihe:Lecture Notes in Applied and Computational Mechanics
ISSN:1613-7736
ISBN:978-3-319-20121-4
Status:veröffentlicht
Stichwörter:Water-towing tank, train aerodynamics, ballast projection, Particle Image Velocimetry (PIV), High-Speed Train
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Verkehr
HGF - Programmthema:Bodengebundener Verkehr (alt)
DLR - Schwerpunkt:Verkehr
DLR - Forschungsgebiet:V BF - Bodengebundene Fahrzeuge
DLR - Teilgebiet (Projekt, Vorhaben):V - Next Generation Train III (alt)
Standort: Göttingen
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Fluidsysteme
Hinterlegt von: Micknaus, Ilka
Hinterlegt am:27 Nov 2015 16:07
Letzte Änderung:10 Mai 2016 23:33

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Gestaltung Webseite und Datenbank: Copyright © Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.