Results 21 to 30 of about 445,534 (289)
Frontiers 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
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Numerical study of the process of unsteady flow in a three-layer porous medium
Magazine 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
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On the hydrodynamics and heat convection of an impinging external flow upon a cylinder with transpiration and embedded in a porous medium [PDF]
, 2017 This paper extends the existing studies of heat convection by an external flow impinging upon a flat porous insert to that on a circular cylinder inside a porous medium.
Alizadeh, Ahmed +3 more
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Estimating the effect of semi-transparent low-height road traffic noise barriers with ultra weak variational formulation [PDF]
, 2011 The ultra weak variational formulation (UWVF) approach is used to study the effect of semi-transparent road traffic noise barriers of limited height. This numerical method is extended to simulate sound propagation through a porous medium, based on the ...
Botteldooren, Dick +2 more
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, 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
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A General Fractional Porous Medium Equation [PDF]
Communications 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
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Non-isothermal transport of multi-phase fluids in porous media. Constitutive equations [PDF]
, 2018 We develop constitutive equations for multi-component, multi-phase, macro-scale flow in a porous medium exposed to temperature-, composition-, and pressure -gradients. The porous medium is non-deformable. We define the pressure and the composition of the
Bedeaux, Dick +4 more
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Ensemble Distribution for Immiscible Two-Phase Flow in Porous Media [PDF]
, 2016 We construct an ensemble distribution to describe steady immiscible two-phase flow of two incompressible fluids in a porous medium. The system is found to be ergodic. The distribution is used to compute macroscopic flow parameters. In particular, we find
Bedeaux, Dick +5 more
core +2 more sources
Characterization of Catalytic Porous Medium Using Platinum for Micro-combustion Application
MATEC 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
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Mechanics Research Communications, 1987 Recently the first author [ibid. 11, 277-279 (1984; Zbl 0548.76072)] has studied the flow through a very porous medium bounded by semi-infinite plate when the free-stream velocity is constant. The purpose of this paper is the study of the steady flow through a very porous medium bounded by a semi-infinite plate when the fluid is viscous and the free ...
Raptis, A. A., Takhar, H. S.
openaire +3 more sources