Results 11 to 20 of about 184,702 (243)

A modeling approach for electrokinetic transport in double-porosity media

open access: hybridElectrochimica Acta, 2022
Rubén López-Vizcaíno   +6 more
openalex   +3 more sources

Non-simple elastic materials with double porosity structure

open access: yesArchives of Mechanics, 2022
This paper is concerned with a strain gradient theory of elastic materials that have a double porosity structure. Firstly, we present the basic equations and the boundary conditions of the nonlinear theory.
S. De Cicco
doaj   +1 more source

Microstructure and Pore Characteristics of a SUS316L Gas Filter Fabricated by Wet Powder Spraying [PDF]

open access: yesArchives of Metallurgy and Materials, 2022
In this study, a flake-shaped metal powder was coated on a tube shaped pre-sintered 316L stainless steel support using a wet powder spraying process to fabricate a double pore structure, and the pore characteristics were analyzed according to coating ...
Min-Jeong Lee   +5 more
doaj   +1 more source

Nonlinear “double porosity” type model

open access: yesComptes Rendus. Mathématique, 2002
We consider a variational problem inf u∈H 1 (Ω) ∫ Ω {a ϵ |∇u ϵ | m +g|u ϵ | m - mf ϵ u ϵ }dx in a bounded domain Ω=ℱ (ϵ) ∪ℳ ¯ (ϵ) with a microstructure ℱ (ϵ) which is not in general periodic; aε=aε(x) is of order 1 in ℱ (ϵ) and sup x∈ℳ (ϵ) a ϵ (x)→0 as ε→0. A homogenized model is constructed.
Pankratov, Leonid, Piatnitski, Andrey
openaire   +2 more sources

Effect of Hall Current in Thermoelastic Materials with Double Porosity Structure

open access: yesInternational Journal of Applied Mechanics and Engineering, 2017
The present investigation is concerned with one dimensional problem in a homogeneous, isotropic thermoelastic medium with double porosity structure in the presence of Hall currents subjected to thermomechanical sources.
R. Kumar, R. Vohra
doaj   +1 more source

Some remarks on single- and double-porosity modeling of coupled chemo-hydro-mechanical processes in clays [PDF]

open access: yes, 2016
Active clays are known to possess an aggregated structure, which justifies the use of double-porosity models to reproduce their behavior. Simulation of chemo-mechanical processes requires instead the introduction of a relevant number of coupled ...
Della Vecchia, Gabriele, Musso, Guido
core   +1 more source

SPH Simulation of Interior and Exterior Flow Field Characteristics of Porous Media [PDF]

open access: yes, 2020
At the present time, one of the most relevant challenges in marine and ocean engineering and practice is the development of a mathematical modeling that can accurately replicate the interaction of water waves with porous coastal structures. Over the last
Gui, Qinqin   +2 more
core   +2 more sources

Mathematical Problems in the Theory of Bone Poroelasticity

open access: yesBiomath, 2012
This paper concerns with the quasi-static theory of bone poroelasticity for materials with double porosity. The system of equations of this theory based on the equilibrium equations, conservation of fluid mass, the effective stress concept and Darcy’s ...
Merab Svanadze, Antonio Scalia
doaj   +1 more source

Modelling a hydration and heating column test on unsaturated bentonite using a double-porosity approach [PDF]

open access: yesE3S Web of Conferences, 2023
A controlled re-saturation of a heated 50 cm long column made of MX-80 bentonite pellets in the CIEMAT laboratory facilities (Madrid, Spain) has been running for 10 years (2011-2021).
Vasconcelos Ramon   +4 more
doaj   +1 more source

Macroscopic modeling of double-porosity reservoirs [PDF]

open access: yesJournal of Petroleum Science and Engineering, 1996
Abstract This paper deals with the seepage of a fluid through a fractured porous medium. It summarizes important results obtained using the homogenization method for periodic structures. Thereby, unlike the phenomenological approaches, the macroscopic behaviors are deduced from the physics at the microscopic scales, without any prerequisite.
Royer, Pascale   +2 more
openaire   +2 more sources

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