Results 11 to 20 of about 101,563 (168)

Porous Medium

open access: yes, 2022
A porous medium can be defined as a material which contains spaces which, when continuous in some way, enable the movement of fluids, air and materials of different chemical and physical properties. The ability of a porous medium to permit the movement of fluids, air or a mixture of different fluids is related to porosity and the variability of pore ...
openaire   +4 more sources

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

Modeling Immiscible Fluid Displacement in a Porous Medium Using Lattice Boltzmann Method

open access: yesFluids, 2021
The numerical investigation of the interpenetrating flow dynamics of a gas injected into a homogeneous porous media saturated with liquid is presented.
Magzhan Atykhan   +3 more
doaj   +1 more source

Development of a high performance flexible porous burner (FPMB) with an adjustable cooling effect

open access: yesTheoretical and Applied Mechanics Letters, 2017
A high performance flexible porous medium burner that can burn gaseous and liquid fuel with different type of flames (premixed and non-premixed) is proposed.
S. Juntron, S. Jugjai
doaj   +1 more source

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

Two-Dimensional Numerical Study of Methane-Air Combustion Within Catalytic and Non-catalytic Porous Medium

open access: yesFrontiers in Chemistry, 2020
This study numerically investigates a two-dimensional physical model of methane/air mixture combustion in catalytic and non-catalytic porous media.
H. B. Gao   +4 more
doaj   +1 more source

Numerical study of the process of unsteady flow in a three-layer porous medium

open access: yesMagazine of Civil Engineering, 2023
The unsteady fluid flow in a three-layer porous medium is numerically investigated and is an important and topical problem. An analytical solution of the equation for the pressure fluid layer is obtained on the basis of the theory of elastic regime ...
Ravshanov Normahmad   +3 more
doaj   +1 more source

Clogging a Porous Medium

open access: yes, 2021
Flows through porous media can carry suspended and dissolved materials. These sediments may deposit inside the pore-space and alter its geometry. In turn, the changing pore structure modifies the preferential flow paths, resulting in a strong coupling between structural modifications and transport characteristics.
Seybold, H. J.   +2 more
openaire   +2 more sources

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\
De Pablo, Arturo   +3 more
openaire   +4 more sources

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

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