Concept
Drainage equation
Related publications (43)
Flow to horizontal drains in isotropic unconfined aquifers
The Laplace-transform solution for the problem of flow to horizontal drains in an anisotropic unconfined aquifer is derived. The solution for the constant flux horizontal- well by Zhan and Zlotnik [Zhan, H., Zlotnik, V.A., 2002. Groundwater flow to a horiz ...
2006Impact of Liquid Configuration and Flow Regimes on Macroscopic Transport Properties in Unsaturated Porous Media: A Lattice Boltzmann Study
The effect of flow regime and fluid morphology (distribution and spatial arrangement) on macroscopic transport properties (effective diffusion coefficient, hydraulic conductivity) was analyzed using a multi-component lattice Boltzmann model. Various flow r ...
2005Coupling of free surface and groundwater flows
We present some preliminary results on the coupling of shallow water equations for free surface flows and Darcy equation for groundwater flows. A suitable set of interface conditions is discussed: the Beavers-Joseph formula for bottom stress is used. An it ...
2003Exploitation of northern peatlands and biodiversity maintenance: a conflict between economy and ecology
Alexandre Buttler, Edward Mitchell
Peatlands are ecosystems of exceptional conservation value because of their beauty, biodiversity, importance in global geochemical cycles, and the paleoenvironmental records they preserve. Commercial extraction and drainage for forestry or agriculture have ...
2003Scope for further analytical solutions for constant-flux infiltration into a semi-infinite soil profile or redistribution in a finite soil profile
We attempt to generate new solutions for the moisture content form of the one-dimensional Richards' [1931] equation using the Lisle [1992] equivalence mapping. This mapping is used as no more general set of transformations exists for mapping the one-dimens ...
2002Mathematical and numerical models for coupling surface and groundwater flows
Alfio Quarteroni, Marco Discacciati, Edie Miglio
We present some results on coupling Navier-Stokes with shallow water equations for surface flows, and with Darcy's equation for groundwater flows. We discuss suitable interface conditions and show the well-posedness of the coupled problem in the case of a ...
2002Gravimetric analysis of organic contamination in railway ballast
Railway ballast provides both the foundation and drainage for railway track. It can become heavily contaminated with diesel fuel due to leakage and spillage. Typical analytical methods for soils may not be applicable to the assessment of ballast. The effic ...
2000Les circulations d'eau dans les massifs cristallins alpins et leurs relations avec les ouvrages souterrains
The present study has been achieved within the framework of the scientific program AQUALP, supported by the EVIAN Foundation. Its theme is the study of the hydrogeology of the Alpine crystalline. The AQUALP programme consists of two co-coordinated parts : ...
EPFL1998Fast, Accurate and Consistent Modeling of Drainage and Surrounding Terrain
We propose an automated approach to modeling drainage channels and, more generally, linear features that lie on the terrain|from multiple images. It produces models of the features and of the surrounding terrain that are accurate and consistent and require ...
Springer Verlag1998Improved scaling technique for two-phase pressure- saturation relationships
Current methods of scaling imbibition and drainage pressure- saturation data scale the capillary pressure head using ratios of surface tension, constant intrinsic contact angle, fluid density difference and bubbling pressure. These methods are applicable t ...
1997