Results 11 to 20 of about 18,445 (315)

Flow in Porous Media with Fractures of Varying Aperture [PDF]

open access: greenSIAM Journal on Scientific Computing, 2022
We study single-phase flow in a fractured porous medium at a macroscopic scale that allows to model fractures individually. The flow is governed by Darcy's law in both fractures and porous matrix. We derive a new mixed-dimensional model, where fractures are represented by $(n-1)$-dimensional interfaces between $n$-dimensional subdomains for $n\ge 2 ...
Samuel Burbulla   +2 more
openalex   +3 more sources

Dynamics of fractures in quenched disordered media [PDF]

open access: greenPhysical Review E, 1998
We introduce a model for fractures in quenched disordered media. This model has a deterministic extremal dynamics, driven by the energy function of a network of springs (Born Hamiltonian). The breakdown is the result of the cooperation between the external field and the quenched disorder.
Guido Caldarelli   +2 more
openalex   +6 more sources

An improved wave equation of fractured-porous media for predicting reservoir permeability

open access: yesFrontiers in Earth Science, 2023
The wave characteristics of fractured-porous media can be utilized for permeability identification; however, further research is necessary to enhance the accuracy of this identification. A novel wave equation for fractured-porous media is formulated, and
Wanjin Zhao   +3 more
doaj   +1 more source

Predicting Electrokinetic Coupling and Electrical Conductivity in Fractured Media Using a Fractal Distribution of Tortuous Capillary Fractures

open access: yesApplied Sciences, 2021
Electrokinetics methods have attracted increasing interest to characterize hydrogeological processes in geological media, especially in complex hydrosystems such as fractured formations.
Luong Duy Thanh   +5 more
doaj   +1 more source

Quantitative characterization of irregular microfracture network and its effect on the permeability of porous media

open access: yesPetroleum Exploration and Development, 2021
Based on the comprehensive understanding on microfractures and matrix pores in reservoir rocks, numerical algorithms are used to construct fractured porous media and fracture-pore media models.
Tao LI   +6 more
doaj   +1 more source

Online Coupled Generalized Multiscale Finite Element Method for the Poroelasticity Problem in Fractured and Heterogeneous Media

open access: yesFluids, 2021
In this paper, we consider the poroelasticity problem in fractured and heterogeneous media. The mathematical model contains a coupled system of equations for fluid pressures and displacements in heterogeneous media.
Aleksei Tyrylgin   +4 more
doaj   +1 more source

Delayed Fracture in Porous Media [PDF]

open access: yesPhysical Review Letters, 2005
The fracture of porous media subjected to a constant load is studied. Contrary to homogeneous solids in which fracture usually happens instantaneously at a well-defined breaking strength, the fracture of a porous medium can occur with a delay, allowing us to quantify the average lifetime of the unbroken material.
Shahidzadeh-Bonn, Noushine   +4 more
openaire   +4 more sources

Capillary Fracturing in Granular Media [PDF]

open access: yesPhysical Review Letters, 2012
We study the displacement of immiscible fluids in deformable, noncohesive granular media. Experimentally, we inject air into a thin bed of water-saturated glass beads and observe the invasion morphology. The control parameters are the injection rate, the bead size, and the confining stress.
Holtzman, Ran   +2 more
openaire   +3 more sources

A New Multicontinuum Model for Advection-Diffusion Process of Single-Phase Nonlinear Flow in a Multiscale Fractured Porous Media

open access: yesJournal of Applied Mathematics, 2022
Fractured porous media modeling and simulation has seen significant development in the past decade but still pose a great challenge and difficulty due to the multiscale nature of fractures, domain heterogeneity, and the nonlinear flow fields due to the ...
Richard Owusu   +3 more
doaj   +1 more source

Reactive Flow in Fractured Porous Media [PDF]

open access: yes, 2020
In this work we present a model reduction procedure to derive a hybrid-dimensional framework for the mathematical modeling of reactive transport in fractured porous media. Fractures are essential pathways in the underground which allow fast circulation of the fluids present in the rock matrix, often characterized by low permeability.
A. Fumagalli, A. Scotti
openaire   +2 more sources

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