Results 31 to 40 of about 3,201,741 (356)

Characterization of Catalytic Porous Medium Using Platinum for Micro-combustion Application

open access: yesMATEC Web of Conferences, 2014
In this study, catalytic alumina porous medium has been fabricated by using platinum as an active material for micro-combustion application. Platinum has been deposited onto porous medium surface via wet impregnation method.
Miskam Muhamad Azman   +3 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

Analysis of the Brinkman equation as a model for flow in porous media [PDF]

open access: yes, 1987
The fundamental solution or Green's function for flow in porous media is determined using Stokesian dynamics, a molecular-dynamics-like simulation method capable of describing the motions and forces of hydrodynamically interacting particles in Stokes ...
Brady, J. F., Durlofsky, L.
core   +1 more source

A General Fractional Porous Medium Equation [PDF]

open access: yesCommunications on Pure and Applied Mathematics, 2012
AbstractWe develop a theory of existence and uniqueness for the following porous medium equation with fractional diffusion: \input amssym $$\left\{ {\matrix{ {{{\partial u} \over {\partial t}} + \left( { ‐ \Delta } \right)^{\sigma /2} \left( {\left| u \right|^{m ‐ 1} u} \right) = 0,} \hfill & {x \in {\Bbb R} ^N ,\,\,t > 0,} \hfill \cr {u\
Fernando Quirós   +3 more
openaire   +4 more sources

Boundary Regularity for the Porous Medium Equation [PDF]

open access: yesArchive for Rational Mechanics and Analysis, 2018
We study the boundary regularity of solutions to the porous medium equation $u_t = u^m$ in the degenerate range $m>1$. In particular, we show that in cylinders the Dirichlet problem with positive continuous boundary data on the parabolic boundary has a solution which attains the boundary values, provided that the spatial domain satisfies the ...
Anders Björn   +3 more
openaire   +7 more sources

Effects of porous medium filling on thermally developing forced convection in a parallel plate channel

open access: yesInternational Journal of Thermofluids, 2023
This study obtains the semi-analytical solutions and explores the thermal characteristics of a thermally developing flow in a parallel plate channel, partially filled with a porous medium at the core, while considering local thermal non-equilibrium ...
M. Farrukh Baig   +3 more
doaj  

Dispersion due to combined pressure-driven and electro-osmotic flows in a channel surrounded by a permeable porous medium

open access: yesThe Physics of Fluids, 2019
The combined electro-osmotic and pressure-driven flows (PDFs) have pronounced impacts on the solute transport in permeable porous media, particularly mixing and separation processes.
Zuhao Kou, M. Dejam
semanticscholar   +1 more source

Microfluidic study in a meter-long reactive path reveals how the medium’s structural heterogeneity shapes MICP-induced biocementation

open access: yesScientific Reports, 2022
Microbially induced calcium carbonate (CaCO3) precipitation (MICP) is one of the major sustainable alternatives to the artificial cementation of granular media.
Ariadni Elmaloglou   +3 more
doaj   +1 more source

Studying Effect of Travel Distance on Dispersion Coefficient in Layered Soil Perpendicular to Flow Direction using Numerical Model [PDF]

open access: yesJournal of Hydraulic and Water Engineering, 2023
One of the most important measurable properties of the porous medium is dispersivity, which is used in advection-dispersion equations related to pollutant transport in the study of groundwater.
H. Mehdipanh   +2 more
doaj   +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

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