elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Influence of cavities on pressure waves inside of high-speed railway tunnels

Heine, Daniela and Ehrenfried, Klaus and Kühnelt, Helmut and Lachinger, Stefan and Rudolph, Michael and Vorwagner, Alois and Saliger, Florian (2018) Influence of cavities on pressure waves inside of high-speed railway tunnels. Third International Conference in numerical and experimental aerodynamics of road vehicles and trains, 13.-15. Juni 2018, Mailand, Italien.

Full text not available from this repository.

Abstract

Newly built railway tunnels are mostly twin-tube tunnels with interconnecting tubes. The interconnecting tubes are closed to the tunnel with safety doors, which can be damaged due to the pressure waves. In this work, the influence of cavities at the side branches on the pressure waves is studied concerning the loads on these safety doors. Moving-model experiments were performed at the Tunnel-Simulation Facility Göttingen. The passage of a train through a tunnel equipped with different cavity configurations was examined. Furthermore, numerical simulations were used to verify the experimental results. It was found, that instead of reducing the pressure at the position of the safety door, the pressure amplitude is increased because of superposition of pressure waves inside of the cavity.

Item URL in elib:https://elib.dlr.de/119844/
Document Type:Conference or Workshop Item (Speech)
Title:Influence of cavities on pressure waves inside of high-speed railway tunnels
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Heine, DanielaDaniela.Heine (at) dlr.deUNSPECIFIED
Ehrenfried, KlausKlaus.Ehrenfried (at) dlr.deUNSPECIFIED
Kühnelt, HelmutAustrian Institute of Technology, Department Mobility, Giefinggasse 2, 1210 Vienna, AustriaUNSPECIFIED
Lachinger, StefanAustrian Institute of Technology, Department Mobility, Giefinggasse 2, 1210 Vienna, AustriaUNSPECIFIED
Rudolph, MichaelAustrian Institute of Technology, Department Mobility, Giefinggasse 2, 1210 Vienna, AustriaUNSPECIFIED
Vorwagner, AloisAustrian Institute of Technology, Department Mobility, Giefinggasse 2, 1210 Vienna, AustriaUNSPECIFIED
Saliger, FlorianÖBB-Infrastruktur AG, Praterstern 3, 1020 Vienna, AustriaUNSPECIFIED
Date:2018
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:tunnel aerodynamics, pressure waves, high-speed trains, safety doors, tunnel cavities
Event Title:Third International Conference in numerical and experimental aerodynamics of road vehicles and trains
Event Location:Mailand, Italien
Event Type:international Conference
Event Dates:13.-15. Juni 2018
Organizer:Fondazione Politecnico di Milano
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 - Next Generation Train III (old)
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Fluid Systems, GO
Deposited By: Heine, Daniela
Deposited On:23 Jul 2018 11:53
Last Modified:23 Jul 2018 11:53

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.