Results 11 to 20 of about 882,435 (290)
PRELIMINARY INVESTIGATIONS OF TRANSPORT IN HETEROGENEOUS RANDOM MEDIA [PDF]
EPJ Web of Conferences, 2021 Random media emerge in several applications in reactor physics and safety analysis. Most often, models of stochastic media assume spatial homogeneity, whereas real-world complex materials, such as fuel chunks resulting from core degradation, typically ...
Larmier C. +4 more
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Compression effects in heterogeneous media [PDF]
Journal de l’École polytechnique — Mathématiques, 2019 We study in this paper compression effects in heterogeneous media with maximal packing constraint. Starting from compressible Brinkman equations, where maximal packing is encoded in a singular pressure and a singular bulk viscosity, we show that the global weak solutions converge (up to a subsequence) to global weak solutions of the two-phase ...
Bresch, D., Nečasová, Š, Perrin, C.
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The diffusion of CO2-brine storage based on stochastic partial differential equations [PDF]
E3S Web of Conferences, 2020 The migration of CO2 is stochastic in heterogeneous porous media. This paper considers the CO2 diffusion with the case of steady flow in heterogeneous porous media.
Bin Liu, Bo Wang, Zhuo Li, Yanfang Lv
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Force-Induced Dispersion in Heterogeneous Media [PDF]
Physical Review Letters, 2015 The effect of a constant applied external force, induced for instance by an electric or gravitational field, on the dispersion of Brownian particles in periodic media with spatially varying diffusivity, and thus mobility, is studied. We show that external forces can greatly enhance dispersion in the direction of the applied force and also modify, to a ...
Guérin, Thomas, Dean, David S
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Statistical Physics of Rupture in Heterogeneous Media [PDF]
, 2005 The damage and fracture of materials are technologically of enormous interest due to their economic and human cost. They cover a wide range of phenomena like e.g.
Sornette, D.
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Известия высших учебных заведений. Поволжский регион: Физико-математические науки, 2021 Background. One of the developing branches of modern fluid and gas mechanics is the mechanics of multiphase and multicomponent media. Experimental research of many dynamics processes of inhomogeneous media is difficult, therefore, mathematical modeling
D.A. Tukmakov
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Larmor frequency in heterogeneous media [PDF]
Journal of Magnetic Resonance, 2019 The Larmor frequency shift is found in porous media consisting of NMR-reporting fluid filling a connected pore within an NMR-invisible matrix for the case of fast diffusion in the fluid. The matrix material has a distinct location-independent anisotropic magnetic susceptibility tensor that induces a heterogeneous microscopic magnetic field when exposed
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Effective medium approach for heterogeneous reaction-diffusion media [PDF]
, 2009 An effective medium theory that can be used to calculate effective diffusion and reaction rate coefficients in random heterogeneous reaction-diffusion systems is described.
Alonso Muñoz, Sergio +2 more
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Heterogeneous condensation in dense media [PDF]
Physical Review E, 2001 50 pages ...
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Rectification and Non-Gaussian Diffusion in Heterogeneous Media
Entropy, 2016 We show that when Brownian motion takes place in a heterogeneous medium, the presence of local forces and transport coefficients leads to deviations from a Gaussian probability distribution that make that the ratio between forward and backward ...
Paolo Malgaretti +2 more
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