Numerical study of the influence of the width of the obstacle on the spread of pollutants after the elimination of the source of pollution

The paper compares the results of mathematical modeling of the distribution of gaseous pollutants behind a single obstacle. The calculations were carried out using the open source OpenFoam package. The obstacles were considered, the width of which was assumed to be 1/3, one, two, and three of its height. Comparison of the calculation results showed that the width of the obstacle has a significant influence on the pattern of flow and distribution of gaseous pollutants in its wake.