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The Second International Conference on Railway Technology

Heine, Daniela and Lauenroth, Gerrit and Huntgeburth, Stefan and Ehrenfried, Klaus (2014) The Second International Conference on Railway Technology. Civil-Comp Press, Stirlingshire, UK. The Second International Conference on Railway Technology, 08.- 11. April 2014, Ajaccio (Korsika), Frankreich. ISSN 1759-3433

Full text not available from this repository.

Official URL: http://www.ctresources.info/ccp/paper.html?id=7692

Abstract

The entry of a high-speed train into a tunnel leads to a system of strong pressure waves inside the tunnel. These abrupt pressure changes go along with many disadvantages. The crucial parameter for the negative effects of the train-tunnel passage is the time derivative of the pressure and therefore the rise time of the pressure. A possible countermeasure is a hood equipped with several windows acting as an extended tunnel portal. The effect of the additional tunnel hood is highly influenced by the number and size of the portal windows, so the choice of the outflow area is very important. To get a better understanding of the effect of a vented tunnel hood experimental studies using an ICE3-model (scaled 1:25), a 10m-long model tunnel and a tunnel hood (both scaled 1:30) were performed at the tunnel-simulation facility G¨ottingen (TSG). The resulting blockage ratio was �Beta = 0:23. The pressure inside the tunnel was measured using pressure transducers and additionally the flow out of the portal windows was investigated using Particle Image Velocimetry. The studies result in an optimised tunnel-portal configuration. The pressure gradient can be reduced by about 60% compared to the gradient measured without extended portal.

Item URL in elib:https://elib.dlr.de/87829/
Document Type:Conference or Workshop Item (Speech)
Additional Information:doi: 10.4203/ccp.104.42
Title:The Second International Conference on Railway Technology
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Heine, Danieladaniela.heine (at) dlr.deUNSPECIFIED
Lauenroth, Gerritgerrit.lauenroth (at) dlr.deUNSPECIFIED
Huntgeburth, Stefanstefan.huntgeburth (at) dlr.deUNSPECIFIED
Ehrenfried, Klausklaus.ehrenfried (at) dlr.deUNSPECIFIED
Date:2014
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-11
Publisher:Civil-Comp Press, Stirlingshire, UK
Series Name:Conference Proceedings on USB-Stick
ISSN:1759-3433
Status:Published
Keywords:train-tunnel entry, high-speed train ICE3, vented tunnel portal, tunnelsimulation facility Göttingen (TSG), high-speed Particle Image Velocimetry
Event Title:The Second International Conference on Railway Technology
Event Location:Ajaccio (Korsika), Frankreich
Event Type:international Conference
Event Dates:08.- 11. April 2014
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Terrestrial Vehicles (old)
DLR - Research area:Transport
DLR - Program:V BF - Bodengebundene Fahrzeuge
DLR - Research theme (Project):V - Project Next Generation Train II (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Fluid Systems
Deposited By: Micknaus, Ilka
Deposited On:20 May 2014 13:20
Last Modified:20 May 2014 13:20

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