Modelling the Effects of a Vegetation Barrier on Road Dust Dispersion
Atmospheric particulate matter (PM) is a well known risk to human health. Vehicular traffic is one of the major sources of particulates in an urban setting.We study a problem of road dust dispersion. Using CFD solver based on RANS equations, we investigate the effect of a vegetation barrier on the concentration of airborne PM induced by road traffic. Simplified 2D model of a porous obstacle adjacent to a road source of two classes of particles serves as an idealization of a real-world situation.Filtering efficiency of the barrier is investigated under varying atmospheric conditions. Our model indicate that the efficiency decreases for increasing wind speed. Effect of atmospheric stratification on~the~air quality behind the barrier is shown to be highly dependent on the wind speed.
V. Šíp and L. Beneš, "Modelling the Effects of a Vegetation Barrier on Road Dust Dispersion", Applied Mechanics and Materials, Vol. 821, pp. 105-112, 2016