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Mechanisms of dispersion in a porous medium [PDF]

open access: yesJournal of Fluid Mechanics, 2017
This paper studies the mechanisms of dispersion in the laminar flow through the pore space of a three-dimensional porous medium. We focus on preasymptotic transport prior to the asymptotic hydrodynamic dispersion regime, in which solute motion may be ...
M. Dentz, Matteo Icardi, J. Hidalgo
semanticscholar   +7 more sources

System of porous medium equations [PDF]

open access: yesJournal of Differential Equations, 2021
We investigate the evolution of population density vector, $\bold{u}=\left(u^1,\cdots,u^k\right)$, of $k$-species whose diffusion is controlled by its absolute value $\left|\bold{u}\right|$. More precisely we study the properties and asymptotic large time behaviour of solution $\bold{u}=\left(u^1,\cdots,u^k\right)$ of degenerate parabolic system \begin{
Ki-Ahm Lee, Ki-Ahm Lee, Sunghoon Kim
openaire   +3 more sources

Features of nanoparticle composite-enhanced CO2 foam-flooding systems for low-permeability reservoirs

open access: yesFrontiers in Energy Research, 2023
This study examined an enhanced foam-flooding system incorporating nanoparticles and polymers under geological conditions of a reservoir of the Shu 16 block in the Yushulin oilfield.
Yong Liu   +7 more
doaj   +1 more source

Mathematical modeling of physical and chemical processes in porous media in solving the problems of nanocomposite materials and water-filling [PDF]

open access: yesНанотехнологии в строительстве, 2023
: Introduction. The complexity and laboriousness of system studies of physical and chemical processes in the volume and at the interface of the porous medium determines the need to apply mathematical modeling.
Valentina V. Kuzina   +3 more
doaj   +1 more source

Analysis of Longitudinal Guided Wave Propagation in a Liquid-Filled Pipe Embedded in Porous Medium

open access: yesApplied Sciences, 2021
To study the leakage situation of a liquid-filled pipe in long-term service, a model of a liquid-filled pipe embedded in an infinite porous medium as well as in a finite porous medium is designed.
Nana Su   +4 more
doaj   +1 more source

The Thermal Performance Analysis of an Al2O3-Water Nanofluid Flow in a Composite Microchannel

open access: yesNanomaterials, 2022
Partial filling of porous medium insert in a channel alleviates the tremendous pressure drop associated with a porous medium saturated channel, and enhances heat transfer at an optimum fraction of porous medium filling.
Mirza Farrukh Baig   +2 more
doaj   +1 more source

Turbulent Flow through and over a Compact Three-Dimensional Model Porous Medium: An Experimental Study

open access: yesFluids, 2021
There are several natural and industrial applications where turbulent flows over compact porous media are relevant. However, the study of such flows is rare.
James Kofi Arthur
doaj   +1 more source

Dynamics of osmosis in a porous medium [PDF]

open access: yesRoyal Society Open Science, 2014
We derive from kinetic theory, fluid mechanics and thermodynamics the minimal continuum-level equations governing the flow of a binary, non-electrolytic mixture in an isotropic porous medium with osmotic effects. For dilute mixtures, these equations are linear and in this limit provide a theoretical basis for the widely used semi-empirical
Silvana S. S. Cardoso   +1 more
openaire   +7 more sources

An Eigenvalues Approach for a Two-Dimensional Porous Medium Based Upon Weak, Normal and Strong Thermal Conductivities

open access: yesSymmetry, 2020
This work is devoted to the investigation of a two-dimensional porous material under weak, strong and normal conductivity, using the eigenvalues method.
F. Alzahrani   +3 more
semanticscholar   +1 more source

Using the porous medium to improve the forced convective heat transfer in the channel and its numerical analysis with lattice Boltzmann method [PDF]

open access: yesمجله مدل سازی در مهندسی, 2019
In this paper, numerical analysis of flow and heat transfer in a two-dimensional channel with porous medium and based on the lattice Boltzmann method is performed.
Mohammad Taghilou   +2 more
doaj   +1 more source

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