Concept

Méthode des volumes finis

Publications associées (141)

A Lagrangian, stochastic modeling framework for multi-phase flow in porous media

Many of the complex physical processes relevant for compositional multi-phase flow in porous media are well understood at the pore-scale level. In order to study CO2 storage in sub-surface formations, however, it is not feasible to perform simulations at t ...

2008

Experimental and numerical analysis of flow instabilities in rectangular shallow basins

Anton Schleiss, Sameh Ahmad Kantoush, Michel Pirotton

Free surface flows in several shallow rectangular basins have been analyzed experimentally, numerically and theoretically. Different geometries, characterized by different widths and lengths, are considered as well as different hydraulic conditions. First, ...

2008

Simulating Viscoplastic Avalanches.

Christophe Ancey, Martin Rentschler

We present a comparison between experiment and numerical results for the dam-break problem involving viscoplastic fluids. The laboratory experiment consists in releasing a fine volume of a viscoplastic fluid down inclined plane and tracking the evolution o ...

2008

Stabilization strategies for high order methods for transport dominated problems

Alfio Quarteroni, Erik Burman, Benjamin Stamm

Standard high order Galerkin methods, such as pure spectral or high order finite element methods, have insufficient stability properties when applied to transport dominated problems. In this paper we review some stabilization strategies for pure spectral m ...

2008

Capillary suction and diffusion model for chloride ingress into concrete

Eugen Brühwiler, David Conciatori, Hamid Sadouki

A numerical approach, named TransChlor, is proposed to simulate transport phenomena of various substances in concrete. This approach is a theoretical model based on finite elements and finite differences methods. The model consists of coupled nonlinear par ...

2008

An elastoplastic three-dimensional homogenization model for particle reinforced composites

John Botsis, Matteo Galli

A model for the homogenization of the elastoplastic properties of particle reinforced composites is proposed. The microstructure is described by means of a novel technique, consisting of generating particles in a pre-existent constrained Delaunay tetrahedr ...

Elsevier2008

Electric and magnetic resonances in arrays of coupled gold nanoparticle in-tandem pairs

Olivier Martin

We present an experimental and theoretical study on the optical properties of arrays of gold nanoparticle in-tandem pairs (nanosandwiches). The well-ordered Au pairs with diameters down to 35 nm and separation distances down to 10 nm were fabricated using ...

Optical Society of America2008

On the wave-front shape and the advancing of the wetting front of a dam-break flood over an inclined plane of arbitrary bottom slope

In this note we consider the analysis of the wave-front shape resulting from the sudden release of a finite volume of water over an inclined plane bed of arbitrary bottom slope. To that end we use the one-dimensional turbulent shallow water equations with ...

Taylor and Francis2007

Apparent nonuniversality in finite segregated tunneling-percolaiton models

Peter Ryser, Claudio Grimaldi

We investigate the tunneling-percolation mechanism of DC transport nonuniversality for conducting particles of diameter Φ placed in series within the bonds of length Lof a regular lattice model. When L/Φ→∞ the resulting bond conductance distribution functi ...

2007

Viscoplastic flows

Actually little is known on the physical processes involved in avalanches or debris flows. We tackle this difficult issue by carrying out idealized experiments, where we focus on the motion of highly time-dependent flows of non-Newtonian fluids. The object ...

AGU2006

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