Results 21 to 30 of about 3,201,741 (356)
, 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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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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Explicit Barenblatt Profiles for Fractional Porous Medium Equations [PDF]
, 2014 Several one-parameter families of explicit self-similar solutions are constructed for the porous medium equations with fractional operators. The corresponding self-similar profiles, also called \emph{Barenblatt profiles}, have the same forms as those of ...
Andrews +21 more
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, 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 ...
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The instability of fronts in a porous medium [PDF]
Communications 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.
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Technical Analysis of Ammonia Reforming Hydrogen Production Based on Porous Medium Burner
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
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“Flow of Electrolytes in a Porous Medium” [PDF]
Journal of Applied Mechanics and Technical Physics, 2008 A two-scale model of ion transfer in a porous medium is obtained for one-dimensional horizontal flows under the action of a pressure gradient and an external electric field by the method of homogenization. Steady equations of electroosmotic flows in flat horizontal nano-sized slits separated by thin dielectric partitions are averaged over a small-scale
V. V. Shelukhin, Yu. Amirat
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Discrete Salt Crystallization at the Surface of a Porous Medium [PDF]
, 2012 Efflorescence refers to crystallized salt structures that form at the surface of a porous medium. The challenge is to understand why these structures do not form everywhere at the surface of the porous medium but at some specific locations and why there ...
Marcoux, Manuel +2 more
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A machine learning based method to generate random packed isotropic porous media with desired porosity and permeability [PDF]
arXiv, 2022 Porous materials are used in many fields, including energy industry, agriculture, medical industry, etc. The generation of digital porous media facilitates the fabrication of real porous media and the analysis of their properties. The past random digital porous media generation methods are unable to generate a porous medium with a specific permeability.
arxiv
Microfluidic systems for the analysis of the viscoelastic fluid flow phenomena in porous media [PDF]
, 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 ...
A Einstein +50 more
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