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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…

偏微分方程分析 · 数学 2024-04-05 Markus Gahn , Malte A. Peter , Iuliu Sorin Pop , David Wiedemann

In this paper, we propose a new numerical scheme for the coupled Stokes-Darcy model with Beavers-Joseph-Saffman interface condition. We use the weak Galerkin method to discretize the Stokes equation and the mixed finite element method to…

数值分析 · 数学 2021-03-02 Hui Peng , Qilong Zhai , Ran Zhang , Shangyou Zhang

The incompressible Navier-Stokes equations coupled to the Maxwell-Stefan relations for the molar fluxes are analyzed in bounded domains with no-flux boundary conditions. The system models the dynamics of a multicomponent gaseous mixture…

偏微分方程分析 · 数学 2013-10-15 Xiuqing Chen , Ansgar Jüngel

Due to their wide appearance in environmental settings as well as industrial and medical applications, the Stokes-Darcy problems with different sets of interface conditions establish an active research area in the community of mathematical…

数值分析 · 数学 2025-04-03 Paula Strohbeck , Marco Discacciati , Iryna Rybak

We analyze the asymptotic behavior corresponding to the arbitrary high conductivity of the heat in the thermoelectric devices. This work deals with a steady-state multidimensional thermistor problem, considering the Joule effect and both…

偏微分方程分析 · 数学 2011-11-15 Luisa Consiglieri

This paper deals with thermoelectric problems including the Peltier and Seebeck effects. The coupled elliptic and doubly quasilinear parabolic equations for the electric and heat currents are stated, respectively, accomplished with…

偏微分方程分析 · 数学 2019-02-04 Luisa Consiglieri

We propose a thermodynamically consistent phase-field model for the flow of a mixture of two different viscous incompressible fluids of equal density in a bounded domain. We prove the well-posedness of local-in-time strong solutions by…

偏微分方程分析 · 数学 2025-11-18 Helmut Abels , Alice Marveggio , Andrea Poiatti

In this paper we develop an a priori error analysis of a new unified mixed finite element method for the coupling of fluid flow with porous media flow in $\mathbb{R}^N$, $N\in\{2,3\}$ on isotropic meshes. Flows are governed by the Stokes…

数值分析 · 数学 2019-08-07 Koffi Wilfrid Houédanou

In this paper, we study a nonlinear interaction problem between a thermoelastic shell and a heat-conducting fluid. The shell is governed by linear thermoelasticity equations and encompasses a time-dependent domain which is filled with a…

偏微分方程分析 · 数学 2022-03-01 Václav Mácha , Boris Muha , Šárka Nečasová , Arnab Roy , Srđan Trifunović

Boundary conditions at the interface between the free-flow region and the adjacent porous medium is a key issue for physically consistent modeling and accurate numerical simulation of flow and transport processes in coupled systems due to…

数值分析 · 数学 2020-06-23 Elissa Eggenweiler , Iryna Rybak

The steady compressible Navier--Stokes--Fourier system is considered, with either Dirichlet or Navier boundary conditions for the velocity and the heat flux on the boundary proportional to the difference of the temperature inside and…

偏微分方程分析 · 数学 2015-11-23 Piotr B. Mucha , Milan Pokorný , Ewelina Zatorska

Physically consistent coupling conditions at the fluid-porous interface with correctly determined effective parameters are necessary for accurate modeling and simulation of various applications. To describe single-fluid-phase flows in…

流体动力学 · 物理学 2022-05-25 Paula Strohbeck , Elissa Eggenweiler , Iryna Rybak

The choice of interface conditions for coupling free-flow and porous-medium flow systems is crucial in order to obtain accurate coupled flow models and precise numerical simulation results. Typically, the Stokes equations are considered in…

偏微分方程分析 · 数学 2025-07-15 Elissa Eggenweiler , Iryna Rybak

In this paper we consider the flow of two incompressible, viscous and immiscible fluids in a bounded domain, with different densities and viscosities. This model consists of a coupled system of Navier-Stokes and Mullins-Sekerka type parts,…

偏微分方程分析 · 数学 2025-05-13 Helmut Abels , Andrea Poiatti

In this work, we propose a new analysis strategy to establish an a priori estimate of the weak solutions to the coupled steady-state dual-porosity-Navier-Stokes fluid flow model with the Beavers-Joseph-Saffman interface condition. The most…

偏微分方程分析 · 数学 2022-01-03 Di Yang , Yinnian He , Luling Cao

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…

偏微分方程分析 · 数学 2014-11-25 Hakima Bessaih , Florin Maris

This paper investigates the existence of weak solutions of biquasilinear boundary value problem for a coupled elliptic-parabolic system of divergence form with discontinuous leading coefficients. The mathematical framework addressed in the…

偏微分方程分析 · 数学 2020-07-10 Luisa Consiglieri

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…

偏微分方程分析 · 数学 2025-12-05 Markus Gahn , Vlad Revnic

We derive a homogenized macroscopic model for fluid flows over ordered homogeneous porous surfaces. The unconfined free-flow is described by the Navier-Stokes equation, and the Darcy equation governs the seepage flow within the porous…

流体动力学 · 物理学 2021-01-20 Y. Sudhakar , Ugis Lacis , Simon Pasche , Shervin Bagheri

We analyze a diffuse interface model that describes the dynamics of incompressible two-phase flows influenced by interactions with a soluble chemical substance, encompassing the chemotaxis effect, mass transport, and reactions. In the…

偏微分方程分析 · 数学 2026-01-13 Andrea Giorgini , Jingning He , Hao Wu