Concept

MODFLOW

Publications associées (33)

Three-dimensional model for multi-component reactive transport with variable density groundwater flow

PHWAT is a new model that couples a geochemical reaction model (PHREEQC-2) with a density-dependent groundwater flow and solute transport model (SEAWAT) using the split- operator approach. PHWAT was developed to simulate multi- component reactive transport ...

2006

New approximation for free surface flow of groundwater: Capillary correction

David Andrew Barry

An existing capillarity correction for free surface groundwater flow as modelled by the Boussinesq equation is re-investigated. Existing solutions, based on the shallow flow expansion, have considered only the zeroth-order approximation. Here, a second-ord ...

2005

Steepness expansion for free surface flows in coastal aquifers

David Andrew Barry

Free surface flow of groundwater in aquifers has been studied since the early 1960s. Previous investigations have been based on the Boussinesq equation, derived from the non- linear kinematic boundary condition. In fact, the Boussinesq equation is the zero ...

2005

Application of PHREEQC on solute transport in groundwater

David Andrew Barry

With increasing groundwater contamination, the study of contaminant transport is becoming more and more important. Since chemical reactions occur simultaneously with contaminant transfer, these two aspects should be coupled in one model. PHREEQC is a simul ...

2004

MODFLOW equipped with a new method for the accurate simulation of axisymmetric flow

David Andrew Barry

Axisymmetric flow to a well is an important topic of groundwater hydraulics, the simulation of which depends on accurate computation of head gradients. Groundwater numerical models with conventional rectilinear grid geometry such as MODFLOW (in contrast to ...

2004

Parametric sensitivity analysis of leachate transport simulations at landfills

This paper presents a case study in simulating leachate generation and transport at a 2000 ton/day landfill facility and assesses leachate migration away from the landfill in order to control associated environmental impacts, particularly on groundwater we ...

2004

Méthodes d'analyse du fonctionnement hydrogéologique des versants instables

Pierre Tullen

Significant progress was made these last decades in the development of hydrogeological methods. However, these new methods are still very little used in the problematics of unstable slopes, mainly because of the hydrogeological complexity, which characteri ...

EPFL2002

Wave-induced seepage flux into anisotropic seabeds

David Andrew Barry

Considerable effort has been devoted to quantifying the wave-induced soil response in a porous seabed in the last few decades. Most previous investigations have focused on the analysis of pore pressure and effective stresses within isotropic sediments, des ...

2001

Groundwater waves in a coastal aquifer: A new governing equation including vertical effects and capillarity

David Andrew Barry

Groundwater waves, that is, water table fluctuations, are a natural phenomenon in coastal aquifers. They represent an important part of the interaction between the ocean and aquifer and affect the mass exchange between them. This paper presents a new groun ...

2000

Groundwater waves in a coastal aquifer: A new governing equation including vertical effects and capillarity

David Andrew Barry

Groundwater waves, i.e., water table fluctuations, are a natural phenomenon in coastal aquifers. They represent an important part of the interactions between the occan and aquifer, and affect the mass exchange between them. This paper describes a new groun ...

2000

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