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In this paper, we consider the homogenization of evolutionary incompressible purely viscous non-Newtonian flows of Carreau-Yasuda type in porous media with small perforation parameter $0< \varepsilon \ll 1$, where the small holes are…

Analysis of PDEs · Mathematics 2023-10-10 Yong Lu , Zhengmao Qian

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

We analyze behavior of weak solutions to compressible fluid flows in a bounded domain in $\mathbb{R}^3$, randomly perforated by tiny balls with random size. Assuming the radii of the balls scale like $\varepsilon^\alpha$, $\alpha > 3$, with…

Analysis of PDEs · Mathematics 2021-07-26 Peter Bella , Florian Oschmann

This paper provides the first study of the homogenization of the 3D non-homogeneous incompressible Navier--Stokes system in perforated domains with holes of supercritical size. The diameter of the holes is of order $\varepsilon^{\alpha} \…

Analysis of PDEs · Mathematics 2025-02-21 Danica Basarić , Florian Oschmann , Jiaojiao Pan

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 limit of the compressible barotropic Navier-Stokes equations in a three-dimensional domain perforated by periodically distributed identical particles. We study the regime of particle sizes and distances such…

Analysis of PDEs · Mathematics 2021-04-29 Richard M. Höfer , Karina Kowalczyk , Sebastian Schwarzacher

We consider the flow of a generalized Newtonian fluid through a thin porous medium of thickness $\epsilon$, perforated by periodically distributed solid cylinders of size $\epsilon$. We assume that the fluid is described by the 3D…

Analysis of PDEs · Mathematics 2025-12-18 Maria Anguiano , Matthieu Bonnivard , Francisco Javier Suarez-Grau

Focusing on Darcy's law incorporating memory effects, this paper studies non-stationary Stokes equations on perforated domains. We establish a sharp homogenization error for both velocity and pressure in terms of the energy norm. The main…

Analysis of PDEs · Mathematics 2025-01-30 Li Wang , Qiang Xu , Zhifei Zhang

This study investigates three-dimensional, steady-state, and non-Newtonian flows within a very thin porous medium (VTPM). The medium is modeled as a domain confined between two parallel plates and perforated by solid cylinders that connect…

Analysis of PDEs · Mathematics 2025-08-06 María Anguiano , Matthieu Bonnivard , Francisco J. Suárez-Grau

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

This paper deals with the homogenization of the Poisson equation in a bounded domain of $\mathbb{R}^d$, $d>2$, which is perforated by a random number of small spherical holes with random radii and positions. We show that for a class of…

Analysis of PDEs · Mathematics 2018-03-28 Arianna Giunti , Richard Höfer , Juan J. L. Velázquez

We consider the homogenization problem of the compressible Navier-Stokes equations in a bounded three dimensional domain perforated with very tiny holes. As the number of holes increases to infinity, we show that, if the size of the holes…

Analysis of PDEs · Mathematics 2017-03-21 Yong Lu , Sebastian Schwarzacher

We analyze the steady fluid flow in a porous medium containing a network of thin fissures i.e. width $\mathcal{O}(\epsilon)$, where all the cracks are generated by the rigid translation of a continuous piecewise $C^{1}$ functions in a fixed…

Analysis of PDEs · Mathematics 2013-12-17 Fernando A. Morales

We consider the solutions $\rho_\varepsilon, \mathbf{u}_\varepsilon$ to the compressible Navier-Stokes equations (NSE) in a domain periodically perforated by holes of diameter $\varepsilon>0$. We focus on the case where the diameter of the…

Analysis of PDEs · Mathematics 2024-06-26 Richard M. Höfer , Šárka Nečasová , Florian Oschmann

We study the homogenization of stationary compressible Navier--Stokes--Fourier system in a bounded three dimensional domain perforated with a large number of very tiny holes. Under suitable assumptions imposed on the smallness and…

Analysis of PDEs · Mathematics 2020-01-22 Yong Lu , Milan Pokorný

We consider the homogenization of a Poisson problem or a Stokes system in a randomly punctured domain with Dirichlet boundary conditions. We assume that the holes are spherical and have random centres and radii. We impose that the average…

Analysis of PDEs · Mathematics 2021-01-05 Arianna Giunti

In this paper, we study the homogenization of 3D non-homogeneous incompressible Navier-Stokes system in perforated domains with holes of critical size. The diameter of the holes is of size \epsilon^3, where \epsilon is a small parameter…

Analysis of PDEs · Mathematics 2024-07-30 Jiaojiao Pan

In this paper we study stationary incompressible Newtonian fluid flow in a thin porous media. The media under consideration is a bounded perforated $3D$ domain confined between two parallel plates. The description of the domain includes two…

Analysis of PDEs · Mathematics 2025-12-17 Francisco J. Suárez-Grau

We study the effect of the Reynolds number on the flow of a generalized Newtonian fluid through a thin porous medium in $\mathbb{R}^3$. This medium is a domain of thickness $\varepsilon \ll 1$, perforated by periodically distributed solid…

Analysis of PDEs · Mathematics 2026-02-10 Maria Anguiano , Matthieu Bonnivard , Francisco J. Suarez-Grau

The steady motion of a viscous incompressible fluid in a multiply-connected, planar, bounded domain (perforated with a large number of small holes) is modeled through the Navier-Stokes equations with non-homogeneous Dirichlet boundary data…

Analysis of PDEs · Mathematics 2025-02-25 Clara Patriarca , Gianmarco Sperone
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