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Transverse effective dispersion coefficients in a chemically heterogeneous medium with flow fluctuations
dc.contributor.author | Zavala Sánchez, Gabriela V. |
dc.contributor.author | Dentz, Marco |
dc.contributor.author | Sánchez Vila, Francisco Javier |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica |
dc.date.accessioned | 2011-12-09T10:31:32Z |
dc.date.available | 2011-12-09T10:31:32Z |
dc.date.created | 2006 |
dc.date.issued | 2006 |
dc.identifier.citation | Zavala, G.; Dentz, M.; Sanchez, F. Transverse effective dispersion coefficients in a chemically heterogeneous medium with flow fluctuations. A: Groundwater Symposium on Groundwater Hydraulics in complex environments. "Groundwater Symposium on Groundwater Hydraulics in complex environments". Toulouse: 2006, p. 1-9. |
dc.identifier.uri | http://hdl.handle.net/2117/14197 |
dc.description.abstract | We investigate the effective transport of a sorptive solute through a chemically heterogeneous medium subject to temporal fluctuations of the flow conditions. We focus on linear instantaneous sorption, with a spatially variable retardation factor. The medium is physically homogeneous. The temporal variability of the flow is represented by a stationary random process. In this stochastic modelling framework, solute spreading is quantified by effective dispersion coefficients. Focusing on the transverse contributions due to chemical heterogeneity and temporal fluctuations, we find enhanced transverse spreading characterized by a transverse effective dispersion coefficient that, in contrast to transport in steady state flow, evolves to a disorder-induced macroscopic value independent of local dispersion. |
dc.format.extent | 9 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Enginyeria civil::Geologia::Hidrologia subterrània |
dc.subject.lcsh | Groundwater flow -- Chemometrics |
dc.title | Transverse effective dispersion coefficients in a chemically heterogeneous medium with flow fluctuations |
dc.type | Conference report |
dc.subject.lemac | Aigües subterrànies -- Fluxe -- Models matemàtics |
dc.contributor.group | Universitat Politècnica de Catalunya. GHS - Grup d'Hidrologia Subterrània |
dc.description.peerreviewed | Peer Reviewed |
dc.rights.access | Open Access |
local.identifier.drac | 5462591 |
dc.description.version | Preprint |
local.citation.author | Zavala, G.; Dentz, M.; Sanchez, F. |
local.citation.contributor | Groundwater Symposium on Groundwater Hydraulics in complex environments |
local.citation.pubplace | Toulouse |
local.citation.publicationName | Groundwater Symposium on Groundwater Hydraulics in complex environments |
local.citation.startingPage | 1 |
local.citation.endingPage | 9 |