Concept

Conductivité hydraulique

Publications associées (212)

Wave-induced watertable fluctuations, sediment transport and beach profile change: Modeling and comparison with large-scale laboratory experiments

David Andrew Barry, Alessandro Brovelli, Roham Bakhtyar

Coastal groundwater systems can have a considerable impact on sediment transport and foreshore evolution in the surf and swash zones. Process-based modeling of wave motion on a permeable beach taking into account wave-aquifer interactions was conducted to ...

Elsevier2011

Effect of heterogeneity on enhanced reductive dechlorination: Analysis of remediation efficiency and groundwater acidification

David Andrew Barry, Christof Holliger, Alessandro Brovelli, Clare Robinson, Elsa Marina Lacroix

Enhanced reductive dehalogenation is an attractive in situ treatment technology for chlorinated contaminants. The process includes two acid-forming microbial reactions: fermentation of an organic substrate resulting in short-chain fatty acids, and dehaloge ...

2011

A study on the uplift mechanism of Tongjiezi dam using a coupled hydro-mechanical model

During filling in 1992 of the Tongiiezi reservoir, in Southwest China, it was noticed that the dam body and the rock masses on the right side of the valley were uplifted up to 22.2 mm and 24.3 mm respectively. After reservoir filling in 1993, the uplift co ...

2011

Design methodology accounting for the effects of porous medium heterogeneity on hydraulic residence time and biodegradation in horizontal subsurface flow constructed wetlands

David Andrew Barry, Luca Rossi, Alessandro Brovelli, Otoniel Carranza Diaz

Horizontal flow constructed wetlands are engineered systems capable of eliminating a wide range of pollutants from the aquatic environment. Nevertheless, poor hydrodynamic behavior is commonly found resulting in preferential pathways and variations in both ...

Elsevier2011

Site-Specific CO2 Adsorption and Zero Thermal Expansion in an Anisotropic Pore Network

Wendy Lee Queen

Detailed neutron powder diffraction (NPD) expts. were carried out on the parent and CO2 adsorbed Mg-MOF-74 (MOF: metal-org. framework). Data collected at low temp. revealed two CO2 adsorption sites on the pore surface and multiple changes in the framework ...

2011

Hydrodynamic Instabilities in Well-Balanced Finite Volume Schemes for Frictional Shallow Water Equations. The Kinematic Wave Case

Martin Rentschler

We report the developments of hydrodynamic instabilities in several well-balanced finite volume schemes that are observed during the computation of the temporal evolution of an out-balance flow which is essentially a kinematic wave. The numerical simulatio ...

Springer Verlag2011

Modified friction factor correlation for CICC's based on a porous media analogy

A modified correlation for the bundle friction factor in CICC's based on a porous media analogy is presented. The correlation is obtained by the analysis of the collected pressure drop data measured for 23 CICC's. The friction factors predicted by the prop ...

2011

Bone Composite Mechanics Related to Collagen Hydration State

Matteo Galli

Bone is considered in two different composite mechanics frameworks: first as an organic inorganic two phase composite, and second as a fluid-saturated porous solid. Experimental data from previous studies, in which the mechanical responses of bone or colla ...

2010

Assessment of semi-impregnated fabrics in honeycomb sandwich structures

Véronique Michaud

Semi-impregnated fabrics, or semipregs, are fabrics alternating dry and resin impregnated areas along the fibre bed surface. Due to their increased initial through thickness permeability to gas flow, these could constitute an alternative to prepreg in the ...

2010

Hydrogeochemical Modelling of Variably Saturated Soils

Laurin Wissmeier

This thesis is about the simulation of flow, transport and geochemical reactions in variably saturated soils. Motivated by the problematic disposal and revegetation of residue from aluminium refining, novel modelling tools for general geochemical reactions ...

EPFL2010

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