Results 31 to 40 of about 68,920 (314)

Variable-density flow in porous media [PDF]

open access: yesJournal of Fluid Mechanics, 2006
Steady-state distributions of water potential and salt concentration in coastal aquifers are typically modelled by the Henry problem, which consists of a fully coupled system of flow and transport equations. Coupling arises from the dependence of water density on salt concentration.
DENTZ M   +5 more
openaire   +3 more sources

Simultaneous thermal and optical imaging of two-phase flow in a micro-model

open access: yes, 2014
In the study of non-equilibrium heat transfer in multiphase flow in porous media, parameters and constitutive relations, like heat transfer coefficients between phases, are unknown.
ERC-PORSCI: A new paradigm in modelling flow and transport in porous media: revisiting foundations of porous media science   +7 more
core   +1 more source

Transport of Non-Newtonian Suspensions of Highly Concentrated Micro- And Nanoscale Iron Particles in Porous Media: A Modeling Approach [PDF]

open access: yes, 2010
The use of zerovalent iron micro- and nanoparticles (MZVI and NZVI) for groundwater remediation is hindered by colloidal instability, causing aggregation (for NZVI) and sedimentation (for MZVI) of the particles.
Tosco, Tiziana Anna Elisabetta   +3 more
core   +1 more source

Microfluidic systems for the analysis of the viscoelastic fluid flow phenomena in porous media [PDF]

open access: yes, 2011
In this study, two microfluidic devices are proposed as simplified 1-D microfluidic analogues of a porous medium. The objectives are twofold: firstly to assess the usefulness of the microchannels to mimic the porous medium in a controlled and simplified ...
P. J. Hamersma   +30 more
core   +1 more source

Flow Simulation of Artificially Induced Microfractures Using Digital Rock and Lattice Boltzmann Methods

open access: yesEnergies, 2018
Microfractures have great significance in the study of reservoir development because they are an effective reserving space and main contributor to permeability in a large amount of reservoirs.
Yongfei Yang   +7 more
doaj   +1 more source

Sensitivity analysis and economic optimization studies of inverted five-spot gas cycling in gas condensate reservoir

open access: yesOpen Physics, 2017
Gas condensate reservoirs usually exhibit complex flow behaviors because of propagation response of pressure drop from the wellbore into the reservoir.
Shams Bilal   +3 more
doaj   +1 more source

Evaluation of void space of complicated potentially oil-bearing carbonate formation using X-ray tomography and electron microscopy methods

open access: yesEnergy Reports, 2022
The Vereiskiy reservoir (Perm Region, Russia) is one of the complicated oil-bearing carbonate formations. It consists of interbedded carbonates and clayey rocks with low interbedded thickness (3–6 m), which makes its development unprofitable.
Sergey V. Galkin   +4 more
doaj   +1 more source

Nanogel formation of polymer solutions flowing through porous media

open access: yes, 2012
A gelation process was seen to occur when Boger fluids made from aqueous solutions of polyacrylamide (PAA) and NaCl flowed through porous media with certain characteristics.
Manuel A. Alves   +9 more
core   +1 more source

Porosity imaging in porous media using synchrotron tomographic techniques [PDF]

open access: yes, 2004
This paper describes novel uses of synchrotron radiation in examining porosity distributions within porous media. Tomographic energy dispersive diffraction imaging and Tomographic X-ray fluorescence have been combined within one measurement method and ...
Atkinson, Tim   +8 more
core   +1 more source

Evaluation of a Volume-Averaged Species Transport Model with Micro–Macro Coupling for Breakthrough Curve Prediction

open access: yesMolecules
In porous water filters, the transport and entrapment of contaminants can be modeled as a classic mass transport problem, which employs the conventional convection–dispersion equation to predict the transport of species existing in trace amounts.
Parham Mobadersani   +2 more
doaj   +1 more source

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