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A linear system of differential equations describing a joint motion of thermoelastic porous body and thermofluid occupying porous space is considered. Although the problem is linear, it is very hard to tackle due to the fact that its main…

偏微分方程分析 · 数学 2007-05-23 Anvarbek M. Meirmanov

A linear system of differential equations describing a joint motion of thermo-elastic porous body and incompressible thermo-fluid occupying porous space is considered. Although the problem is linear, it is very hard to tackle due to the…

偏微分方程分析 · 数学 2007-05-23 Anvarbek M. Meirmanov

We consider a linear system of differential equations describing a joint motion of elastic porous body and fluid occupying porous space. The rigorous justification, under various conditions imposed on physical parameters, is fulfilled for…

偏微分方程分析 · 数学 2007-05-23 Anvarbek Meirmanov

A linear system of differential equations describing a joint motion of a thermoelastic porous body with a sufficiently large Lame's constants (absolutelty rigid body) and a thermofluid, occupying porous space, is considered. The rigorous…

偏微分方程分析 · 数学 2007-05-23 Anvarbek Meirmanov

The two-scale computational homogenization method is proposed for modelling of locally periodic fluid-saturated media subjected a to large deformation induced by quasistatic loading. The periodic heterogeneities are relevant to the…

数值分析 · 数学 2022-02-11 Vladimír Lukeš , Eduard Rohan

Double porosity models for the liquid filtration in a naturally fractured reservoir is derived from the homogenization theory. The governing equations on the microscopic level consist of the stationary Stokes system for an incompressible…

偏微分方程分析 · 数学 2009-03-05 Anvarbek Meirmanov

Double porosity models for the liquid filtration in an absolutely rigid body is derived from homogenization theory. The governing equations of the fluid dynamics on the microscopic level consist of the Stokes system for a slightly…

偏微分方程分析 · 数学 2009-03-05 Anvarbek Meirmanov

In this paper we present the two-level homogenization of the flow in a deformable double-porous structure described at two characteristic scales. The higher level porosity associated with the mesoscopic structure is constituted by channels…

计算物理 · 物理学 2020-06-30 Eduard Rohan , Jana Turjanicová , Vladimír Lukeš

The paper addresses the homogenization of a family of micro-models for the flow of a slightly compressible fluid in a poroelastic matrix containing periodically distibuted poroelastic inclusions, with low permeabilities and with imperfect…

偏微分方程分析 · 数学 2012-12-06 Abdelhamid Ainouz

We derive the equations of motion for the dynamics of a porous media filled with an incompressible fluid. We use a variational approach with a Lagrangian written as the sum of terms representing the kinetic and potential energy of the…

流体动力学 · 物理学 2020-07-07 Tagir Farkhutdinov , François Gay-Balmaz , Vakhtang Putkaradze

A major challenge in flow through porous media is to better understand the link between microstructure and macroscale flow and transport. For idealised microstructures, the mathematical framework of homogenisation theory can be used for…

Vugs are small to medium-sized cavities inside rock, which have significant effects on the fluid flow in rock. Moreover, the presence of vugs may have non-trivial impacts on the geomechanical behavior of rock. How to quantify and analyze…

计算物理 · 物理学 2018-04-13 Zhaoqin Huang , Xu Zhou , Tao Huang , Jun Yao , Xiaoguang Wang , Hervé Jourde

We consider a strongly heterogeneous medium saturated by an incompressible viscous fluid as it appears in geomechanical modeling. This poroelasticity problem suffers from rapidly oscillating material parameters, which calls for a thorough…

数值分析 · 数学 2018-12-27 Robert Altmann , Eric Chung , Roland Maier , Daniel Peterseim , Sai-Mang Pun

The paper presents two-scale numerical algorithms for stress-strain analysis of porous media featured by self-contact at pore level. The porosity is constituted as a periodic lattice generated by a representative cell consisting of elastic…

偏微分方程分析 · 数学 2023-01-18 Eduard Rohan , Jan Heczko

In this paper, the analysis and homogenization of a poroelastic model for the hydro-mechanical response of fibre-reinforced hydrogels is considered. Here, the medium in question is considered to be a highly heterogeneous two-component media…

偏微分方程分析 · 数学 2023-11-27 Michael Eden , Hari Shankar Mahato

The paper presents a new type of weakly nonlinear two-scale model of inflatable periodic poroelastic structures saturated by Newtonian fluids. The periodic microstructures incorporate fluid inclusions connected to the fluid channels by…

偏微分方程分析 · 数学 2025-08-28 Eduard Rohan , Vladimír Lukeš

We are interested in the homogenization of elastic-electric coupling equation, with rapidly oscillating coefficients, in periodically perforated piezoelectric body. We justify the two first terms in the usual asymptotic development of the…

数值分析 · 数学 2007-09-10 Mechkour Houari

In this paper we employ homogenization techniques to provide a rigorous derivation of the Darcy scale model for precipitation and dissolution in porous media proposed in [19]. The starting point is the pore scale model in [12], which is a…

偏微分方程分析 · 数学 2014-01-29 Kundan Kumar , Maria Neuss-Radu , Iuliu Sorin Pop

The paper presents a new type of weakly nonlinear two-scale model of controllable periodic porous piezoelectric structures saturated by Newtonian fluids. The flow is propelled by peristaltic deformation of microchannels which is induced due…

偏微分方程分析 · 数学 2024-07-18 Eduard Rohan , Vladimír Lukeš

In this paper we give a new proof of the homogenization result for an immiscible incompressible two-phase flow in double porosity media obtained earlier in the pioneer work by A. Bourgeat, S. Luckhaus, A. Mikeli\'c (1996) and in the paper…

偏微分方程分析 · 数学 2016-08-23 Brahim Amaziane , Mladen Jurak , Leonid Pankratov , Anja Vrbaski
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