MATHEMATICAL MODELING OF POLLUTANT TRANSPORT AND DISPERSION PROCESSES IN THE DNIESTER RIVER
2020
Rodica Brani?te | Galina Marusic
This paper approaches the issue of water quality in river-type aquatic systems. It is discussed the importance of applying the mathematical and numerical models in order to assess the water quality and to predict different water pollution scenarios. It is presented an analysis of the field regarding the mathematical modeling of the spatio-temporal evolution of pollutants in river-type aquatic systems. As well, it is examined the water quality and are discussed the environmental issues regarding the pollution of the Dniester River. In the paper it is presented an analysis of the water samples taken from the Dniester River by the State Hydrometeorological Service, highlighting the pollutants that have exceeded the maximum permissible concentration on some sectors of the river. It is analyzed, as well as, the domain of mathematical models use for the calculation of the pollutant concentration area in the Dniester River and is proposed the development of the mathematical model based on the Navier-Stokes system of equations for the determination of hydrodynamic processes. In this paper it is also proposed a methodology for determining the spatio-temporal evolution of pollutants based on mathematical modeling using the fundamental equation of advection-dispersion.
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