Stochastic dynamics of intermittent pore-scale particle motion in three-dimensional porous media: Experiments and theory
Sign Up to like & getrecommendations! Published in 2017 at "Geophysical Research Letters"
DOI: 10.1002/2017gl074326
Abstract: ©2017. American Geophysical Union. All Rights Reserved. We study the evolution of velocity in time, which fundamentally controls the way dissolved substances are transported and spread in porous media. Experiments are conducted that use tracer… read more here.
Keywords: motion; velocity; media experiments; particle ... See more keywords
Pore‐Network Modeling of Particle Retention in Porous Media
Sign Up to like & getrecommendations! Published in 2017 at "Aiche Journal"
DOI: 10.1002/aic.15593
Abstract: Transport and filtration of micron and submicron particles in porous media is important in applications such as water purification, contaminants dispersion, and drilling mud invasion. Existing macroscopic models often fail to be predictive without empirical… read more here.
Keywords: pore network; particle retention; particle; porous media ... See more keywords
Simulation of deformable preformed particle gel propagation in porous media
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DOI: 10.1002/aic.15793
Abstract: Preformed particle gel (PPG) treatment is a proven cost-effective method for improving oil recovery. Although PPG system has a suspension-like property, it has different propagation rules from the rigid particle suspension in porous media because… read more here.
Keywords: propagation; particle gel; preformed particle; porous media ... See more keywords
A new insight into the stability of variable viscosity diffusive boundary layers in porous media under gravity field
Sign Up to like & getrecommendations! Published in 2018 at "Aiche Journal"
DOI: 10.1002/aic.15974
Abstract: We study the stability of gravitationally unstable transient diffusive boundary layers with variable viscosity in porous media. The previous studies characterize the effect of viscosity variation only in terms of viscosity contrast and generalize their… read more here.
Keywords: viscosity; diffusive boundary; boundary layers; variable viscosity ... See more keywords
Intercomparison of boundary schemes in Lattice Boltzmann method for flow simulation in porous media
Sign Up to like & getrecommendations! Published in 2020 at "International Journal for Numerical Methods in Fluids"
DOI: 10.1002/fld.4858
Abstract: The Lattice Boltzmann method has been widely adopted to simulate flow in porous media. The choice of appropriate boundary schemes is essential to achieve simulation accuracy; however, the criteria for the most suitable boundary treatment… read more here.
Keywords: boltzmann method; lattice boltzmann; simulation; porous media ... See more keywords
Discontinuous finite volume method for compressible miscible displacement problems in porous media
Sign Up to like & getrecommendations! Published in 2019 at "Mathematical Methods in the Applied Sciences"
DOI: 10.1002/mma.5588
Abstract: The compressible miscible displacement problem in porous media is modeled by a coupled system of two nonlinear partial differential equations: the pressure equation and the concentration equation are parabolic equation. In this article, we present… read more here.
Keywords: discontinuous finite; finite volume; compressible miscible; equation ... See more keywords
Homogenization of degenerate coupled transport processes in porous media with memory terms
Sign Up to like & getrecommendations! Published in 2019 at "Mathematical Methods in the Applied Sciences"
DOI: 10.1002/mma.5718
Abstract: In this paper we establish a homogenization result for a doubly nonlinear parabolic system arising from the hygro-thermo-chemical processes in porous media taking into account memory phenomena. We present a meso-scale model of the composite… read more here.
Keywords: homogenization degenerate; processes porous; degenerate coupled; porous media ... See more keywords
On bounded approximations of periodicity for computational homogenization of Stokes flow in porous media
Sign Up to like & getrecommendations! Published in 2017 at "International Journal for Numerical Methods in Engineering"
DOI: 10.1002/nme.5281
Abstract: By separation of scales and the homogenization of a flow through porous media, a two-scale problem arises where a Darcy-type flow is present on the macroscale and a Stokes flow on the subscale. In this… read more here.
Keywords: periodicity; flow porous; bounded approximations; homogenization ... See more keywords
A posteriori error estimation for numerical model reduction in computational homogenization of porous media
Sign Up to like & getrecommendations! Published in 2020 at "International Journal for Numerical Methods in Engineering"
DOI: 10.1002/nme.6504
Abstract: Numerical model reduction is adopted for solving the microscale problem that arizes from computational homogenization of a model problem of porous media with displacement and pressure as unknown fields. A reduced basis is obtained for… read more here.
Keywords: computational homogenization; model; model reduction; porous media ... See more keywords
Computational coupled large‐deformation periporomechanics for dynamic failure and fracturing in variably saturated porous media
Sign Up to like & getrecommendations! Published in 2022 at "International Journal for Numerical Methods in Engineering"
DOI: 10.1002/nme.7109
Abstract: The large‐deformation mechanics and multiphysics of continuous or fracturing partially saturated porous media under static and dynamic loads are significant in engineering and science. This article is devoted to a computational coupled large‐deformation periporomechanics paradigm… read more here.
Keywords: deformation; porous media; deformation periporomechanics; large deformation ... See more keywords
Pore‐scale modeling of microbial activity: What we have and what we need
Sign Up to like & getrecommendations! Published in 2021 at "Vadose Zone Journal"
DOI: 10.1002/vzj2.20087
Abstract: Under water‐unsaturated conditions, environmental factors (e.g., substrate, nutrients, O2, water activity, and porous structure) controlling microbial activity are highly variable in space and time. The physical structure of porous media (pore size distribution and pore… read more here.
Keywords: modeling microbial; scale modeling; pore scale; microbial activity ... See more keywords