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Vehicle Tunnels (vehicle + tunnels)

Distribution by Scientific Domains
Engineering75%

Selected Abstracts

Modeling and Simulation of Fires in Vehicle Tunnels

PROCEEDINGS IN APPLIED MATHEMATICS & MECHANICS, Issue 1 2003
I. Teleaga M.Sc.
Starting with compressible Navier-Stokes equations we derive a new fluid model by applying a low-Mach number asymptotic. The model is used to simulate fire events in vehicular tunnels. [source]

Modelling and simulation of fires in vehicle tunnels

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, Issue 3 2004
I. Gasser
Abstract Applying a low-Mach asymptotic for the compressible Navier,Stokes equations, we derive a new fluid dynamics model,which should be capable to model large temperature differences in combination with the low-Mach number limit. The model is used to simulate fires in vehicle tunnels, where the standard Boussinesq-approximation for the incompressible Navier,Stokes seems to be inappropriate due to the high temperatures developing in the tunnel. The model is implemented using a modified finite-difference approach for the incompressible Navier,Stokes equations and tested in some realistic fire events. Copyright © 2004 John Wiley & Sons, Ltd. [source]

An asymptotic-induced one-dimensional model to describe fires in tunnels

MATHEMATICAL METHODS IN THE APPLIED SCIENCES, Issue 14 2002
Ingenuin Gasser
We derive a simple one-dimensional model for the description of fire events in long vehicle tunnels, which is based on appropriate low-Mach number asymptotics as well as on averaging procedure along the cross-section of a tunnel. Turbulent effects are modelled using a phenomenological model. Numerical simulations based on a standard finite-difference method show the ability of the new model to describe fires in tunnels at least qualitatively. Copyright © 2002 John Wiley & Sons, Ltd. [source]