WIT Press


Identification Of Filtration And Migration Parameters In The MATLAB Calculation Environment Using Numerical Simulation Of Breakthrough Curve And Optimization Methods

Price

Free (open access)

Paper DOI

10.2495/WRM090421

Volume

125

Pages

12

Page Range

471 - 482

Published

2009

Size

846 kb

Author(s)

M. Okonska, M. Marciniak, M. Kaczmarek & K. Kazimierska-Drobny

Abstract

Mathematical modelling and numerical simulations in the processes of groundwater’s filtration and pollutant transport are dependent on the knowledge of hydrogeological parameters of a given medium. The authors were interested in the possibility of defining the value of hydrogeological parameters using the method of numerical optimization. So far the identification of the parameters appearing in the description of transport process has been conducted mostly using the method of trial and error. In the article the authors present their own method of determining filtration and migration parameters on the basis of the data registered during the column experiment using numerical optimization in MATLAB calculation environment. The procedure proved considerable convergence and not having many local minimums. Good fit of numerical models with experimental breakthrough curves was obtained. Moreover, the article presents the influence of particular hydrogeological parameters on the shape of breakthrough curve in MATLAB programme. Keywords: filtration columns, breakthrough curves, MATLAB, numerical optimization, parameters of filtration and migration.

Keywords

filtration columns, breakthrough curves, MATLAB, numericaloptimization, parameters of filtration and migration