Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Description of the flow equations around a high speed train inside a tunnel
Year:2018
Research Areas
  • Physics chemical and mathematical,
  • Theoric methods on mechanics fluids,
  • Engineering
Information
Abstract
The present article focuses on the analysis of the equations that describe the flow when a high speed train enters a tunnel. The disparity in time and length scales allows the problem to be decomposed in different regions and regimes when matched appropriately produce the full description of the flow. The aforementioned regions are the flow upstream and downstream of the train, the areas near the nose and tail of the train, and the flow in the gap between the train and the tunnel. The regimes are analysed based on the flow regions, time scales, length scales and velocity scales. All those regions and regimes are conveniently formulated and the flow key scales are analysed and described, which allows for a simplified and robust formulation. The aforementioned formulation is implemented in a computational program that needs some external coefficients, namely the pressure signature of the train, that should be obtained only once and it could be derived from experimental data or CFD. Comparison with experimental and numerical data from other references are provided. Finally, the thermal problem is briefly introduced and some comments on the tunnel cooling problem are considered.
International
Si
JCR
Si
Title
Journal of Wind Engineering And Industrial Aerodynamics
ISBN
0167-6105
Impact factor JCR
2,049
Impact info
Datos JCR del año 2016
Volume
172
10.1016/j.jweia.2017.09.012
Journal number
From page
212
To page
229
Month
ENERO
Ranking
Participants
  • Autor: Juan Manuel Rivero Fernández (UPM)
  • Autor: Ezequiel Gonzalez Martinez (UPM)
  • Autor: Manuel Rodriguez Fernandez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Análisis y experimentación en mecánica de fluidos y combustión
  • Departamento: Mecánica de Fluidos y Propulsión Aeroespacial
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)