Results 41 to 50 of about 2,358,015 (296)

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   +5 more sources

Quenching for Porous Medium Equations

open access: yesTamkang Journal of Mathematics, 2021
This paper studies the following two porous medium equations with singular boundary conditions. First, we obtain that finite time quenching on the boundary, as well as kt blows up at the same finite time and lower bound estimates of the quenching time of the equation kt = (kn)xx + (1 − k)−α, (x,t) ∈ (0,L) × (0,T) with (kn)x (0,t) = 0, (kn)x (L,t) = (
openaire   +3 more sources

Sharp global nonlinear stability for a fluid overlying a highly porous material [PDF]

open access: yes, 2009
The stability of convection in a two-layer system in which a layer of fluid with a temperature-dependent viscosity overlies and saturates a highly porous material is studied. Owing to the difficulties associated with incorporating the nonlinear advection
A. A. Hill   +3 more
core   +1 more source

Effect of Anionic Surfactants on the Oil–Water–Rock Interactions by an Improved Washburn Method

open access: yesMolecules
The complex and variable structure of subsurface oil reservoirs as well as the small pore throat size of reservoirs make it extremely important to investigate the effect of oil–water–rock interactions for enhancing oil recovery. In this paper, the powder
Tie Kuang   +8 more
doaj   +1 more source

Potential applications of distributed optical fiber sensor in hydrate‐induced sedimentary deformation research

open access: yesEnergy Science & Engineering, 2022
Natural gas hydrate is regarded as a potential clean energy source. However, hydrate phase transition during gas production leads to significant hydrate‐bearing sedimentary layer deformation, which is one of the main obstacles for safe hydrate ...
Ying Teng   +3 more
doaj   +1 more source

Mixed and galerkin finite element approximation of flow in a linear viscoelastic porous medium [PDF]

open access: yes, 2013
This is the post-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2013 ElsevierThis article has been made available through the Brunel Open Access Publishing Fund.We propose two fully discrete
Shaw, Simon   +7 more
core   +1 more source

An upscaling-based numerical simulation method for time-varying reservoir properties

open access: yesFrontiers in Earth Science
Both field practices and laboratory experiments in mature, high water-cut oilfields have confirmed that long-term water flooding dynamically alters rock wettability and micro-pore structure, causing shifts in relative permeability curves and reservoir ...
Yubo Lan   +8 more
doaj   +1 more source

Three-dimensional spatially localized binary-fluid convection in a porous medium [PDF]

open access: yes, 2013
Three-dimensional convection in a binary mixture in a porous medium heated from below is studied. For negative separation ratios steady spatially localized convection patterns are expected.
Bergeon, Alain   +2 more
core   +1 more source

Flow Through Porous Media Induced by an Impervious Rotating Disk in the Presence of Magnetic Field

open access: yesEngineering Transactions, 2005
The flow of an electrically conducting viscous incompressible fluid, due to an infinite impervious rotating disk bounded by porous medium is discussed.
P.K. SHARMA, R.C. CHAUDHARY
doaj   +1 more source

Using MHD free convection to receive the generated heat by an elliptical porous media

open access: yesCase Studies in Thermal Engineering, 2022
In many chemical processes, porous medium is usually used as a catalyst and mixing of reactants that may generate heat in thermal chemical processes.
Gongxing Yan   +4 more
doaj   +1 more source

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