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Heine, Daniela and Lauenroth, Gerrit and Huntgeburth, Stefan and Ehrenfried, Klaus (2015) Reduction of the pressure gradient in railway tunnels using vented tunnel portals. BHR Groug, Cranfield, United Kingdom. 16th International Symposium on Aerodynamics and Ventilation of Tunnels, 2015-09-15 - 2015-09-17, Seattle, USA. ISBN 978 1 85598 149 213.8 14.
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Abstract
The passage of a high-speed train through a vented tunnel hood was studied experimentally in model scale. The pressure history inside the tunnel was observed using pressure transducers, and the flow field outside the portal vents was recorded using an optical measurement technique. The pressure gradients inside the tunnel and the air volume exhausted through the vents are considered for different vent configurations. The experimental results are compared with theoretical predictions. The dependence of the pressure history on the position and size of the vents is explained. By optimising their configuration the pressure gradients could be reduced significantly.
| Item URL in elib: | https://elib.dlr.de/98669/ | ||||||||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||
| Title: | Reduction of the pressure gradient in railway tunnels using vented tunnel portals | ||||||||||||||||||||
| Authors: |
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| Date: | 2015 | ||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||
| Open Access: | No | ||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||
| In SCOPUS: | No | ||||||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||||||
| Page Range: | pp. 483-497 | ||||||||||||||||||||
| Editors: |
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| Publisher: | BHR Groug, Cranfield, United Kingdom | ||||||||||||||||||||
| Series Name: | Conference Proceedings | ||||||||||||||||||||
| ISBN: | 978 1 85598 149 213.8 14 | ||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||
| Keywords: | Pressure waves in tunnels, tunnel boom, nonlinear steepening, high-speed PIV | ||||||||||||||||||||
| Event Title: | 16th International Symposium on Aerodynamics and Ventilation of Tunnels | ||||||||||||||||||||
| Event Location: | Seattle, USA | ||||||||||||||||||||
| Event Type: | international Conference | ||||||||||||||||||||
| Event Start Date: | 15 September 2015 | ||||||||||||||||||||
| Event End Date: | 17 September 2015 | ||||||||||||||||||||
| 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 of Aerodynamics and Flow Technology > Fluid Systems | ||||||||||||||||||||
| Deposited By: | Micknaus, Ilka | ||||||||||||||||||||
| Deposited On: | 26 Oct 2015 17:23 | ||||||||||||||||||||
| Last Modified: | 24 Apr 2024 20:04 |
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