Inverse Problems in Transport of Pollutants in Rivers

Abstract

In the present work inverse problems in transport of pollutant in rivers are presented. Problems were studied in rivers with constant and variable wet area sections, being in the first the speed of the river constant and in the second variable, obtained through the numeric solution of the Burgers equation, and also with the method of finite differences. In the inverse problems in pollutant transport in rivers of constant and variable speeds studied estimates for the diffusion coefficient, were obtained using a local optimization method, the Levenberg –Marquardt method. A sensitivity analysis was performed in order to identify the experimental data to be used in accordance with the location of the discharge of the pollutants.