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We consider the homogenisation of the Stokes equations in a porous medium which is evolving in time. At the interface of the pore space and the solid part, we prescribe an inhomogeneous Dirichlet boundary condition, which enables to model a…

Analysis of PDEs · Mathematics 2021-09-14 David Wiedemann , Malte A. Peter

The two dimensional Navier-Stokes equation in a perforated domain with a dynamical slip boundary condition is considered. We assume that the dynamic is driven by a stochastic perturbation on the interior of the domain and another stochastic…

Analysis of PDEs · Mathematics 2014-11-25 Hakima Bessaih , Florin Maris

In our recent work [8], we have studied the homogenization of the Poisson equation in a class of non periodically perforated domains. In this paper, we examine the case of the Stokes system. We consider a porous medium in which the…

Analysis of PDEs · Mathematics 2021-01-13 Sylvain Wolf

A microscopic heterogeneous system under random influence is considered. The randomness enters the system at physical boundary of small scale obstacles as well as at the interior of the physical medium. This system is modeled by a…

Analysis of PDEs · Mathematics 2009-11-13 Wei Wang , Jinqiao Duan

We consider the homogenization to the Brinkman equations for the incompressible Stokes equations in a bounded domain which is perforated by a random collection of small spherical holes. This problem has been studied by the same authors in…

Analysis of PDEs · Mathematics 2020-03-11 Arianna Giunti , Richard M. Höfer

We consider the homogenisation of a coupled Stokes flow and advection-reaction-diffusion problem in a perforated domain with an evolving microstructure of size $\varepsilon$. Reactions at the boundaries of the microscopic interfaces lead to…

Analysis of PDEs · Mathematics 2024-04-05 Markus Gahn , Malte A. Peter , Iuliu Sorin Pop , David Wiedemann

The asymptotic behavior of the solution of an infinite set of Smoluchowski's discrete coagulation-fragmentation-diffusion equations with non-homogeneous Neumann boundary conditions, defined in a periodically perforated domain, is analyzed.…

Mathematical Physics · Physics 2017-11-17 Laurent Desvillettes , Silvia Lorenzani

We consider the homogenization of the Poisson and the Stokes equations in the whole space perforated with periodically distributed small holes. The periodic homogenization in bounded domains is well understood, following the classical…

Analysis of PDEs · Mathematics 2020-03-17 Yong Lu

We consider the homogenization of the Stokes equations in a domain perforated with a large number of small holes which are periodically distributed. In [1,2], Allaire gave a systematic study on this problem. In this paper, we introduce a…

Analysis of PDEs · Mathematics 2019-11-13 Yong Lu

We consider the evolutionary compressible Navier-Stokes equations in a two-dimensional perforated domain, and show that in the subcritical case of very tiny holes, the density and velocity converge to a solution of the evolutionary…

Analysis of PDEs · Mathematics 2023-07-04 Šárka Nečasová , Florian Oschmann

We prove the homogenization to the Brinkman equations for the incompressible Stokes equations in a bounded domain which is perforated by a random collection of small spherical holes. The fluid satisfies a no-slip boundary condition at the…

Analysis of PDEs · Mathematics 2020-03-12 Arianna Giunti , Richard M. Höfer

We study the homogenization of the Poisson equation in randomly perforated domains and obtain the strange term effect in the homogenized equation. The perforations are modeled by rescaled germ-grain processes, and the main assumption is…

Analysis of PDEs · Mathematics 2026-02-24 Naoto Sato

We consider the Stokes equations on a bounded perforated domaincompleted with non-zero constant boundary conditions on the holes. We investigate configurations forwhich the holes are identical spheres and their number N goes to infinity…

Analysis of PDEs · Mathematics 2018-06-06 Matthieu Hillairet

We consider the homogenisation of a coupled reaction-diffusion process in a porous medium with evolving microstructure. A concentration-dependent reaction rate at the interface of the pores with the solid matrix induces a…

Analysis of PDEs · Mathematics 2022-06-01 David Wiedemann , Malte A. Peter

The paper deals with homogenization problem for nonlinear elliptic and parabolic equations in a periodically perforated domain, a nonlinear Fourier boundary conditions being imposed on the perforation border. Under the assumptions that the…

Analysis of PDEs · Mathematics 2010-06-04 Andrey Piatnitski , Volodymyr Rybalko

We revisit the homogenization problem for the Poisson equation in periodically perforated domains with zero Neumann data at the boundary of the holes and prescribed Dirichlet data at the outer boundary. It is known that, if the periodicity…

Analysis of PDEs · Mathematics 2022-02-01 Wenjia Jing

We consider the homogenisation of the instationary Stokes equations in a porous medium with an a-priori given evolving microstructure. In order to pass to the homogenisation limit, we transform the Stokes equations to a domain with a fixed…

Analysis of PDEs · Mathematics 2024-03-14 David Wiedemann , Malte A. Peter

We deal with the rigorous homogenization and dimension reduction of flow and transport problems posed in thin $\varepsilon$-periodic perforated layers with thickness of order $\varepsilon^{\alpha}$ with $\alpha \in (0,1)$ and therefore the…

Analysis of PDEs · Mathematics 2025-12-05 Markus Gahn , Vlad Revnic

We study the convergence of the Method of Reflections for the Dirichlet problem of the Poisson and the Stokes equations in perforated domains which consist in the exterior of balls. We prove that the method converges if the balls are…

Analysis of PDEs · Mathematics 2017-11-22 Richard Höfer , Juan J. L. Velázquez

We study the Poisson equation in a perforated domain with homogeneous Dirichlet boundary conditions. The size of the perforations is denoted by $\epsilon$ > 0, and is proportional to the distance between neighbouring perforations. In the…

Analysis of PDEs · Mathematics 2020-10-01 Xavier Blanc , S Wolf
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