Static Pressure Impact on Aerodynamics of High Speed Railway Tunnels

Montenegro, N. and Sorribes Palmer, Felix and López García, Oscar and Navarro Medina, Fermín and Sanz Andres, Angel Pedro and Rodríguez-Illanes, R. (2012). Static Pressure Impact on Aerodynamics of High Speed Railway Tunnels. In: "Proceedings of The First International Conference on Railway Technology: Research, Development and Maintenance", 18/04/2012-20/04/2012, Las Palmas de Gran Canaria, España.

Description

Title: Static Pressure Impact on Aerodynamics of High Speed Railway Tunnels
Author/s:
  • Montenegro, N.
  • Sorribes Palmer, Felix
  • López García, Oscar
  • Navarro Medina, Fermín
  • Sanz Andres, Angel Pedro
  • Rodríguez-Illanes, R.
Item Type: Presentation at Congress or Conference (Article)
Event Title: Proceedings of The First International Conference on Railway Technology: Research, Development and Maintenance
Event Dates: 18/04/2012-20/04/2012
Event Location: Las Palmas de Gran Canaria, España
Title of Book: The First International Conference on Railway Technology: Research, Development and Maintenance
Date: 2012
Subjects:
Faculty: Instituto de Microgravedad Ignacio Da Riva (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

A pressure wave is generated when a high speed train enters a tunnel. This wave travels along the tunnel back and forth, and is reflected at the irregularities of the tunnel duct (section changes, chimneys and tunnel ends). The pressure changes are associated to these waves can have an effect on passengers if the trains are not suitably sealed or pressurized. The intensity of the waves depends mainly on the train speed, and on the blockage ratio (train-section-to- tunnel-section area ratio). As the intensity of the waves is limited by regulations, and also by the effects on passengers and infrastructures, the sizing of the tunnel section area is largely influenced by the maximum train speed allowed in the tunnel. The aim of this study is to analyse the increase in cost in a tunnel due to the existence of this difference in ground level, and evaluate the increase of construction costs that this elevation might involve.

More information

Item ID: 19152
DC Identifier: http://oa.upm.es/19152/
OAI Identifier: oai:oa.upm.es:19152
Official URL: http://www.ctresources.info/ccp/paper.html?id=6808
Deposited by: Memoria Investigacion
Deposited on: 11 Nov 2013 15:16
Last Modified: 22 Sep 2014 11:15
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