Results 31 to 40 of about 2,358,015 (296)

A note on withdrawal from a two-layer fluid through a line sink in a porous medium [PDF]

open access: yes, 2008
The steady response of the free surface of a fluid in a porous medium is considered during extraction of the fluid through a line sink. A conformal-mapping approach is used to derive exact solutions to a family of problems in which the line sink is ...
Hocking, GC   +5 more
core   +1 more source

A Radó theorem for the porous medium equation [PDF]

open access: yesBoletín de la Sociedad Matemática Mexicana, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dmitry Fedchenko, Nikolai Tarkhanov
openaire   +2 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

The instability of fronts in a porous medium [PDF]

open access: yesCommunications in Mathematical Physics, 1983
We use a random choice numerical method to analyze the instability of a front separating two fluids in a porous medium. We observe a linear instability and a catastrophic finite amplitude instability. A qualitative analogy with problems involving a transition to turbulence is pointed out.
openaire   +3 more sources

Coning during withdrawal from two fluids of different density in a porous medium [PDF]

open access: yes, 2009
The steady response of the interface between two fluids with different density in a porous medium is considered during extraction through a line sink. Supercritical withdrawal, or coning as it is often called, in which both fluids are being withdrawn, is
Hocking, GC   +5 more
core   +1 more source

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

Flow through a porous medium

open access: yesMechanics 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

Analytical and numerical stability analysis of Soret-driven convection in a horizontal porous layer [PDF]

open access: yes, 2007
We present an analytical and numerical stability analysis of Soret-driven convection in a porous cavity saturated by a binary fluid. Both the mechanical equilibrium solution and the monocellular flow obtained for particular ranges of the physical ...
Mojtabi, Abdelkader   +5 more
core   +1 more source

Technical Analysis of Ammonia Reforming Hydrogen Production Based on Porous Medium Burner

open access: yes南方能源建设, 2023
[Introduction] Hydrogen energy is characterized by the advantages of wide sources, high calorific value, storability, no pollution, and zero carbon emissions. It has become a zero-carbon clean energy with great development potential.
Zixing WANG   +3 more
doaj   +1 more source

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