The effect of the external wind on a road tunnel is the subject of the investigations reported here. Reduced-scale models of various geometrical configurations of a tunnel portal were investigated through wind tunnel experiments combined with numerical simulations. The study aimed at evaluating the mean wind pressure coefficient at the portal. In addition to the incident wind direction, it is shown that the pressure coefficient depends largely on the tunnel geometry and the presence of surrounding buildings. Similar conclusions could be drawn from the numerical investigations. The standard k-ε model used here led to satisfactory predictions of the pressure coefficients.

Experimental and Numerical Investigations of the Wind Pressure Coefficient at a Tunnel Portal

BOFFADOSSI, MAURIZIO
2013-01-01

Abstract

The effect of the external wind on a road tunnel is the subject of the investigations reported here. Reduced-scale models of various geometrical configurations of a tunnel portal were investigated through wind tunnel experiments combined with numerical simulations. The study aimed at evaluating the mean wind pressure coefficient at the portal. In addition to the incident wind direction, it is shown that the pressure coefficient depends largely on the tunnel geometry and the presence of surrounding buildings. Similar conclusions could be drawn from the numerical investigations. The standard k-ε model used here led to satisfactory predictions of the pressure coefficients.
15th International Symposium on Aerodynamics, Ventilation & Fire in Tunnels 2013
9781629933870
File in questo prodotto:
File Dimensione Formato  
KUBWT01-13.pdf

Accesso riservato

: Post-Print (DRAFT o Author’s Accepted Manuscript-AAM)
Dimensione 896.05 kB
Formato Adobe PDF
896.05 kB Adobe PDF   Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/760697
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 1
  • ???jsp.display-item.citation.isi??? ND
social impact