Numerical modelling of gas dispersion from road tunnels in urban environments: comparison with field experiment data
by D. Delaunay, J.P. Flori, C. Sacre
International Journal of Environment and Pollution (IJEP), Vol. 8, No. 3/4/5/6, 1997

Abstract: Numerical computations and field experiments of the dispersion of a tracer gas from a road tunnel in Paris are compared. The Reynolds-averaged Navier-Stokes equations, combined with the k-ε turbulence model of Chen and Kim, are solved using the finite-volume code PHOENICS. Results are shown to be sensitive to the turbulence modelling and to the parameterisation of turbulence and drag forces generated by traffic.

Online publication date: Tue, 15-Sep-2009

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