Results 201 to 210 of about 184,702 (243)

Consolidation of a double-porosity medium

International Journal of Solids and Structures, 1998
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Lewallen, K. T., Wang, H. F.
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Modelling doublets and double porosity

Quarterly Journal of Engineering Geology and Hydrogeology, 2010
Abstract A simple model has been developed as a scoping tool for transport between an injection well and an abstraction well pumping at the same rate (i.e. a doublet) in a fractured porous rock. This model is aimed primarily at the planning and preliminary interpretation of tracer tests and trial heat exchange using thermal doublets in the Chalk ...
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Love waves in double porosity media

Journal of Sound and Vibration, 2006
Abstract Based on the control equations for double-porosity media extended from Biot's theory, the propagation of Love waves is discussed in this paper. Dispersion equations of Love waves in double porosity medium are obtained by utilizing the usual assumption of Love waves in elastic solid with the coupling mass coefficient ρ 23 and coupling ...
Zhi-jun Dai, Zhen-Bang Kuang
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Wave propagation in double-porosity thermoelastic media

GEOPHYSICS, 2022
The Lord-Shulman thermoporoelasticity theory couples the Biot and hyperbolic heat equations to describe wave propagation, modeling explicitly the effects of heat and fluid flows. We have extended the theory to the case of double porosity by taking into account the local heat flow (LHF) and local fluid flow (LFF) due to wave propagation. The plane-wave
Nianqi Li, Wubing Deng, Li-Yun Fu, José M. Carcione, Tongcheng Han   +4 more
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Double Porosity and Voids

2017
Our aim in this chapter is to describe a theory of nonlinear thermoelasticity where the body contains a double porosity system of voids. There is a void distribution associated to the macro pores, but additionally there is another void distribution due to the micro pores. This work was developed by Iesan & Quintanilla [? ].
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Multiphase double‐porosity homogenization for perimeter functionals

Mathematical Methods in the Applied Sciences, 2012
In this paper, we study a homogenization problem for perimeter energies in highly contrasted media; the analysis of the previous paper is carried out by removing the hypothesis that the perforated mediumRn ∖ Eis composed of disjoint compact components.
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Wave propagation in materials with double porosity

Mechanics of Materials, 2020
Abstract This paper is dedicated to propagation of waves with assigned length in a model describing the evolutionary behavior of materials with double porosity. Basic equations are considered for an isotropic and homogeneous material which occupies the entire three dimensional space. Wave solutions with assigned wavelength are sought.
Cătălin Galeş, Stan Chiriţă
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Wave propagation characteristics at the welded interface of double-porosity solid and double-porosity dual-permeability materials

Waves in Random and Complex Media, 2019
In the present study, propagation characteristics (reflection/refraction phenomena) at the welded interface of two dissimilar double-porosity media are investigated.
M. Kumari, M. Kumar, M. S. Barak
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Double Porosity Models for Acoustics

2013
Double porosity models for acoustics in poroelastic media is derived from homogenization theory. The fluid dynamics on the microscopic level is governed by the the nonstationary Stokes systems for a slightly compressible viscous liquid. The liquid domain is a union of two independent systems of fractures and pores.
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Double Porosity and Second Sound

2017
Up to this point in this book we have considered thermoelastic bodies with a multiple porosity structure assuming that the heat flux is governed by a Fourier law, i.e. the heat flux is determined directly by the temperature gradient. Materials technology is advancing very rapidly and it is likely that for many future applications a Fourier law may be ...
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