Concept
Drainage equation
Publications associées (43)
Dynamic Effective Porosity Explains Laboratory Experiments on Watertable Fluctuations in Coastal Unconfined Aquifers
David Andrew Barry, Zhaoyang Luo
Watertable fluctuations are a characteristic feature of coastal unconfined aquifers. They interact with the vadose zone creating a dynamic effective porosity, for which a new (empirical) expression is proposed based on a dimensionless parameter related to ...
2022An ecohydrological journey of 4500 years reveals a stable but threatened precipitation–groundwater recharge relation around Jerusalem
Groundwater is a key water resource in semiarid and seasonally dry regions around the world, which is replenished by intermittent precipitation events and mediated by vegetation, soil, and regolith properties. Here, a climate reconstruction of 4500 years f ...
2021River morphology and sediment transport processes numerical modeling applied to the fluvial environment of the Rhône River in Valais
Giovanni De Cesare, Azin Amini, Jean-Noël Saugy, Francesc Molné Correig
Within the frame of the Third Rhône Correction, the river bend in Martigny is considered a top priority measure for flood protection. During the preliminary project, physical and numerical modeling tests were considered necessary. For the latter, the softw ...
International Research Society INTERPRAEVENT2021Effects of large macropores on soil evaporation in salt marshes
The occurrence of macropores in salt marsh sediments is a natural and ubiquitous phenomenon. Although they are widely assumed to affect pore-water flow in salt marshes significantly, the mechanisms involved and their extent are not well understood. We cond ...
2020Anisotropic behaviour of shallow opalinus clay
Lyesse Laloui, Alessio Ferrari, Eleonora Crisci, Alberto Minardi
Opalinus Clay shale, the selected host geomaterial of a high-level radioactive waste repository in Switzerland, was sourced at shallow depth in a borehole in the northern part of the country. Pairs of specimens, retrieved from the same depth were prepared ...
Springer Verlag2019Semi-analytical solution of flow to a well in an unconfined-fractured aquifer system separated by an aquitard
Semi-analytical solutions are presented for flow to a well in an extensive homogeneous and anisotropic unconfined-fractured aquifer system separated by an aquitard. The pumping well is of infinitesimal radius and screened in either the overlying unconfined ...
2018Pressure-dependent elastic and transport properties of porous and permeable rocks: Microstructural control
Lucas Xan Pimienta, Christian David
Although several studies aimed at linking electrical and hydraulic transport properties in rocks, the existing models remain at most incomplete. Based on this observation, in addition to the transport properties, this contribution investigates the pressure ...
Amer Geophysical Union2017Multiscale methods for Stokes flow in heterogeneous media
Fluid flow in porous media is a multiscale process where the effective dynamics, which is often the goal of a computation, depends strongly on the porous micro structure. Resolving the micro structure in the whole porous medium can, however, be prohibitive ...
EPFL2016A reduced basis finite element heterogeneous multiscale method for Stokes flow in porous media
A reduced basis Darcy-Stokes finite element heterogeneous multiscale method (RB-DS-FE-HMM) is proposed for the Stokes problem in porous media. The multiscale method is based on the Darcy-Stokes finite element heterogeneous multiscale method (DS-FE-HMM) int ...
Elsevier Science Sa2016An Adaptive Sparse Grid Algorithm for Elliptic PDEs with Lognormal Diffusion Coefficient
Fabio Nobile, Lorenzo Tamellini, Francesco Tesei
In this work we build on the classical adaptive sparse grid algorithm (T. Gerstner and M. Griebel, Dimension-adaptive tensor-product quadrature), obtaining an enhanced version capable of using non-nested collocation points, and supporting quadrature and in ...
Springer2016