Modeling for the Spread of Water Pollution under Hydraulic Structure with a Rabbet

Abstract

In industry and agriculture, along with the increasing influence of various technogenic factors on the environment, there is an important problem of protecting water resources from pollution and salinization, as well as the problem of protecting natural water bodies from pollutants. The solution of these problems essentially depends on the results of a mathematical study of the mass transfer processes of migrating substances in the filtration of groundwater. In this paper, we simulate the process of spreading water pollution under the hydraulic structure of a complex architecture. The unsteady equation of the process of mass transfer of pollutants during the filtration of groundwater was approximated by the finite difference method, while the procedure "weighting upstream" was used to approximate the convective terms. The results of calculations showed that the pollution of the downstream of a hydraulic structure depends on the number of rabbets and their location along the underground circuit. The obtained results can be used in monitoring and building predictive estimates of the migration regime of pollution under a hydraulic structure in real time.