Transport in heterogeneous porous formations: The role of advection
Event details
| Date | 26.02.2013 |
| Hour | 16:15 › 17:15 |
| Speaker | Dr Aldo Fiori, Dipartimento di Scienze dell'Ingegneria Civile, Università di Roma Tre |
| Location | |
| Category | Conferences - Seminars |
Transport of a nonreactive solute in natural aquifer is deeply influenced by the spatial distribution of the hydraulic conductivity K. Recent studies and experimental evidence show that the dynamics of transport is affected by the degree of heterogeneity present in the groundwater system, and in particular when in presence of strongly heterogeneous aquifers. A few features of transport in such formations are discussed by the means of a simplified theoretical model which is based on the self-consistent assumption. The theoretical model, which depends only on the statistical properties of K and the mean uniform flow U, is tested against numerical simulations and laboratory and field experiments. The derived solution permits to test and discuss a series of transport features which occur in strongly heterogeneous aquifers, like e.g. connectivity and fast preferential flow or solute retention and tailing. The method is applied to the MADE experiment (Columbus, USA) and results are discussed. It is claimed that local scale advection may explain many of the transport features occurring in disordered porous media.
Practical information
- General public
- Free
- This event is internal
Organizer
- IIE
Contact
- Professor Andrea Rinaldo, ECHO