A numerical model for the analysis of pollutant transport in partially saturated deforming soils is presented. The governing equations at macroscopic level are obtained from balance equations at microscopic level by means of systematic applications of averaging techniques. Discretization of the resulting partial differential equations is carried out by means of F.E. in space and F.D. in time. An error analysis for the discretization in time is presented. The model is then validated with respect to experimental tests, which are described. Finally an example of displacement of water by dense non-aqueous phase fluid is shown.
Pollutant transport in deforming porous media
SCHREFLER, BERNHARD;D'ALPAOS, LUIGI;SIMONI, LUCIANO
1994
Abstract
A numerical model for the analysis of pollutant transport in partially saturated deforming soils is presented. The governing equations at macroscopic level are obtained from balance equations at microscopic level by means of systematic applications of averaging techniques. Discretization of the resulting partial differential equations is carried out by means of F.E. in space and F.D. in time. An error analysis for the discretization in time is presented. The model is then validated with respect to experimental tests, which are described. Finally an example of displacement of water by dense non-aqueous phase fluid is shown.File in questo prodotto:
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