ANALYTICAL 1D DUAL-POROSITY EQUIVALENT SOLUTIONS TO 3D DISCRETE SINGLE-CONTINUUM MODELS. APPLICATION TO KARSTIC SPRING HYDROGRAPH MODELLING
- DSpace Home
- →
- Геология России
- →
- ELibrary
- →
- View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.
ANALYTICAL 1D DUAL-POROSITY EQUIVALENT SOLUTIONS TO 3D DISCRETE SINGLE-CONTINUUM MODELS. APPLICATION TO KARSTIC SPRING HYDROGRAPH MODELLING
Cornaton F.; Perrochet P.
xmlui.dri2xhtml.METS-1.0.item-citation:
Journal of Hydrology, 2002, 262, 1-4, 165-176
Date:
2002
Abstract:
One-dimensional analytical porosity-weighted solutions of the dual-porosity model are derived, providing insights on how to relate exchange and storage coefficients to the volumetric density of the high-permeability medium. It is shown that porosity-weighted storage and exchange coefficients are needed when handling highly heterogeneous systems-such as karstic aquifers-using equivalent dual-porosity models. The sensitivity of these coefficients is illustrated by means of numerical experiments with theoretical karst systems. The presented 1D dual-porosity analytical model is used to reproduce the hydraulic responses of reference 3D karst aquifers, modelled by a discrete single-continuum approach. Under various stress conditions, simulation results show the relations between the dual-porosity model coefficients and the structural features of the discrete single-continuum model. The calibration of the equivalent 1D analytical dual-porosity model on reference hydraulic responses confirms the dependence of the exchange coefficient with the karstic network density. The use of the analytical model could also point out some fundamental structural properties of the karstic network that rule the shape of the hydraulic responses, such as density and connectivity.
Files in this item
This item appears in the following Collection(s)
-
ELibrary
Метаданные публикаций с сайта https://www.elibrary.ru
Related items
Showing items related by title, author, creator and subject.
-
Thyer M.; Kuczera G. (2003)A Bayesian approach for calibrating a hidden Markov model (HMM) to long-term multi-site rainfall time series is presented. Using a HMM approach for simulating long-term persistence is attractive because it has an explicit ...
-
Felmy A.R.; Rustad J.R. (1998)Molecular statics calculations of proton binding at the hydroxylated faces of goethite are used to guide the development of a thermodynamic model which describes the surface charging properties of goethite in electrolyte ...
-
Marion G.M.; Farren R.E. (1999)The Spencer-Moller-Weare (SMW) (1990) model is parameterized for the Na-K-Mg-Ca-Cl-SO4-H2O system over the temperature range from -60° to 25°C. This model is one of the few complex chemical equilibrium models for aqueous ...
Search DSpace
Browse
-
All of DSpace
-
This Collection