Estudio del transporte hidrodinámico del nitrato como contaminante de los ríos
Fecha
2017-07-10
Autores
Pérez García, Roxana
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Editor
Universidad Central “Marta Abreu” de Las Villas
Resumen
Los problemas de contaminación son cada vez más debatidos en el ámbito internacional debido a los trastornos que les pueden causar a la ecología y a la biodiversidad. El presente trabajo tiene como objetivo resolver el caso no estacionario unidimensional de una ecuación de dispersión-advección que incluye términos de reactancia químico-biológica y de cargas de vertimiento. Para la consecución de tal propósito se ofrecen los fundamentos teóricos sobre los cuales se basa el estudio. Se encuentra la solución en cuadraturas para problemas de tipo parabólico que modelan la concentración del nitrato como contaminante del río, valorando una sola fuente de contaminantes en el semieje derecho. Por tener solución única el problema y así mismo mayor aplicación práctica, solo se ofrece la solución analítica para los casos de índice cero del coeficiente del problema de Riemann.
The problems of contamination are more and more debated in the international environment due to the dysfunctions that can cause to the ecology and the biodiversity. The present work has as objective to solve the case of non-stationary one-dimensional equation of dispersion-advection that includes terms of chemical-biological reactance and loads that may be spilled. For the attainment of such purpose were offered the theoretical basics on which this study is based. It is the solution in quadratures for the problems of parabolic type that model the concentration of the nitrate like pollutant of the river, valuing a single source of pollutants in the right semi-axis. To have a unique solution the problem and likewise bigger alone practical application offers the analytic solution for the cases of index zero of the coefficient of the problem of Riemann.
The problems of contamination are more and more debated in the international environment due to the dysfunctions that can cause to the ecology and the biodiversity. The present work has as objective to solve the case of non-stationary one-dimensional equation of dispersion-advection that includes terms of chemical-biological reactance and loads that may be spilled. For the attainment of such purpose were offered the theoretical basics on which this study is based. It is the solution in quadratures for the problems of parabolic type that model the concentration of the nitrate like pollutant of the river, valuing a single source of pollutants in the right semi-axis. To have a unique solution the problem and likewise bigger alone practical application offers the analytic solution for the cases of index zero of the coefficient of the problem of Riemann.
Descripción
Palabras clave
Ecuación de Dispersión Advección, Ecuación Parabólica, Equation of Dispersion Advection, Parabolic Equation