The effect of barrier location on characteristics of gas pollutant transfer in the vicinity of highway

This paper studies approaches to numerical modeling of the transfer of harmful gas emission from low sources in the vicinity of the highways. A model problem of ethane injection through a system of low sources located on a flat plate imitating a road is considered as applied to experimental data of [22]. The influence of the turbulent Schmidt number on the processes of turbulent mixing of gases in the vicinity of a system of bluff bodies is investigated. Within the framework of numerical modeling, various configurations of barrier location in the vicinity of highways are considered and the most effective configurations are estimated in terms of air quality in pedestrian zones. A qualitative and quantitative comparison with experimental data on the profiles of ethane concentration in characteristic locations is carried out.