[PDF] Top 20 Qualification and validity of a smeared fractures modeling approach for flow and transport in fractured media

... 5 for the smeared fracture simulation. Different levels of discretization were considered including the figure 2 case as well as a twice finer and twice coarser ...position of ... Voir le document complet

... the fractures are included individually in the ...the fractures are taken into account individually and not averaged) or reduced models (since the fractures are modeled as surfaces ... Voir le document complet

... challenges of traditional techniques, we develop in this work a GSA based on the non-intrusive ...PCE. In particular, we apply an efficient sparse technique to construct the PCE with a ... Voir le document complet

... Because of the low conductivity of matrix blocks in crystalline, in this case granitic, media, flow primarily occurs along fractures, which are, for radionuclides, ... Voir le document complet

... operations, and to study the behavior of averaged macro-scale quantities (mean flux, mean pressure gradient, mean displacement, ...obtains a mass conservation equation div(Q) = 0 combined with ... Voir le document complet

... on a mixed formulation in the bulk cou- pled with a primal formulation inside the ...case, and we assume that the fracture is a line segment that cuts the bulk region in ...two. ... Voir le document complet

... aquifers, fractured zones constitute adequate drinking water exploitation areas but also potential contamina- tion ...issue in hydrogeological research is to identify, characterize, and monitor such ... Voir le document complet

... species in the mth mineral, and ν ji is the stoichiometric coecient of the ith ionic species in the jth ...reactions in ionic transport prob- lems. In early models (see ... Voir le document complet

... formulated in terms of a single set of unknowns used in the matrix, in the fracture network and in the gallery corresponding to the liquid and gas ... Voir le document complet

... Through a theoretical study, assuming local mass equilibrium, a macroscopic one- equation model describing the reactive transport (advection/diffusion/reaction) of the two species in ... Voir le document complet

... extension of Discrete Fracture Matrix (DFM) models to com- positional two-phase Darcy flow accounting for phase transitions and Fickian ...count in particular for the saturation ... Voir le document complet

... measured and estimated D e values 0.40 0.74 0.74 0.80 4.3. Cross-validation of diffusion accessible porosity Tables 8 and 9 show the statistical properties of the co-kriging ...residuals. ... Voir le document complet

... oagulation of sili ate ement suspensions during early age hydration. Journal of Colloid and Interfa e S ien e 1998, ...hemistry of soils, Oxford University Press, USA, ...solution of ... Voir le document complet

... behavior of the transport and deposition process by solving a set of differential equations that gives spatial and temporal variation of particles concentration in ... Voir le document complet

... Abstract. In the present paper we numerically investigate and vali- date a variational smeared model for cohesive crack, recently proposed and theoretically justified by ... Voir le document complet

... Variation of permeability reduction versus the number of injected particles at various Péclet ...simulations of the deposition of colloidal particles onto porous media of simple ... Voir le document complet

... 2 and for the discretization in space ...choice of the kernel is crucial to obtain ...use in this paper is closely related to the one developed by Brenier [ 3 ], who proposed a ... Voir le document complet

... Introduction Flow and transport in fractured porous media are of paramount importance for many applications such as petroleum exploration and production, ... Voir le document complet

... of the double layer is generally assumed to be small compared to the characteristics dimensions of the pore space ...located in the free water are considered to be unaected by the surface charge ... Voir le document complet

... consider a hybrid dimensional model of two-phase gas-water Darcy flow in fractured porous ...type of models, introduced in [2], [4] for single phase Darcy flows ... Voir le document complet