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We establish the existence and uniqueness of both local martingale and local pathwise solutions of an abstract nonlinear stochastic evolution system. The primary application of this abstract framework is to infer the local existence of…

偏微分方程分析 · 数学 2015-05-19 Arnaud Debussche , Nathan Glatt-Holtz , Roger Temam

The paper deals with homogenization of Navier-Stokes-type system describing electrorheologial fluid with random characteristics. Under non-standard growth conditions we construct the homogenized model and prove the convergence result. The…

偏微分方程分析 · 数学 2015-07-24 Andrey Piatnitski , Vasily Zhikov

This paper is devoted to the study of the stochastic-periodic homogenization of Poisson-Nernst-Planck equations in porous media. It is shown by the stochastic two-scale convergence method extended to periodic surfaces that results in a…

偏微分方程分析 · 数学 2024-08-26 Franck Tchinda , Joel Fotso Tachago , Joseph Dongho , Fridolin Tchangnwa Nya

We study random homogenization of second-order, degenerate and quasilinear Hamilton-Jacobi equations which are positively homogeneous in the gradient. Included are the equations of forced mean curvature motion and others describing…

偏微分方程分析 · 数学 2016-03-29 Scott Armstrong , Pierre Cardaliaguet

We study the full Navier--Stokes--Fourier system governing the motion of a general viscous, heat-conducting, and compressible fluid subject to stochastic perturbation. Stochastic effects are implemented through (i) random initial data, (ii)…

偏微分方程分析 · 数学 2017-10-31 Dominic Breit , Eduard Feireisl

We study the homogenization of a steady diffusion equation in a highly heterogeneous medium made of two subregions separated by a periodic barrier through which the flow is proportional to the jump of the temperature by a layer conductance…

偏微分方程分析 · 数学 2008-11-08 Abdelhamid Ainouz

The primary emphasis of this work is the development of a finite element based space-time discretization for solving the stochastic Lagrangian averaged Navier-Stokes (LANS-$\alpha$) equations of incompressible fluid turbulence with…

数值分析 · 数学 2021-11-01 Jad Doghman , Ludovic Goudenège

Aim of this paper is to extend the continuous dependence estimates proved in \cite{JK1} to quasi-monotone systems of fully nonlinear second-order parabolic equations. As by-product of these estimates, we get an H\"older estimate for bounded…

偏微分方程分析 · 数学 2012-02-28 Fabio Camilli , Claudio Marchi

The diffusion of molecules in complex intracellular environments can be strongly influenced by spatial heterogeneity and stochasticity. A key challenge when modelling such processes using stochastic random walk frameworks is that negative…

生物物理 · 物理学 2019-01-31 Elliot J. Carr , Matthew J. Simpson

The paper deals with the existence and almost periodic homogenization of some model of generalized Navier-Stokes equations. We first establish an existence result for non-stationary Ladyzhenskaya equations with a given non constant density.…

偏微分方程分析 · 数学 2012-08-17 Hermann Douanla , Jean Louis Woukeng

This paper seeks to carry out the rigorous homogenization of a particulate flow consisting of a non-dilute suspension of a viscous Newtonian fluid with magnetizable particles. The fluid is assumed to be described by the Stokes flow, while…

偏微分方程分析 · 数学 2021-09-22 Thuyen Dang , Yuliya Gorb , Silvia Jimenez Bolanos

In this paper we prove the existence of global weak dissipative martingale solutions for a one-dimensional compressible fluid model with capillarity and density dependent viscosity, driven by random initial data and a stochastic forcing…

偏微分方程分析 · 数学 2024-12-17 Donatella Donatelli , Lorenzo Pescatore , Stefano Spirito

In this paper, we study stochastic homogenization of a coupled diffusion-reaction system. The diffusion-reaction system is coupled to stochastic differential equations, which govern the changes in the media properties. Though homogenization…

概率论 · 数学 2018-10-18 Hakima Bessaih , Yalchin Efendiev , Razvan Florian Maris

The paper deals with homogenization of a model problem describing an immiscible compressible two-phase flow in random statistically homogeneous porous media. We derive the effective (macroscopic) problem and prove the convergence of…

偏微分方程分析 · 数学 2020-10-13 Brahim Amaziane , Leonid Pankratov , Andrey Piatnitski

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

In this paper we extend the homogenization results obtained in (G. Allaire, A. Mikeli\'c, A. Piatnitski, J. Math. Phys. 51 (2010), 123103) for a system of partial differential equations describing the transport of a N-component electrolyte…

偏微分方程分析 · 数学 2020-09-14 Andro Mikelic , Andrey Piatnitski

We introduce a new method for studying stochastic homogenization of elliptic equations in nondivergence form. The main application is an algebraic error estimate, asserting that deviations from the homogenized limit are at most proportional…

偏微分方程分析 · 数学 2019-12-10 Scott N. Armstrong , Charles K. Smart

The homogeneous partly pinned fluid systems are simple models of a fluid confined in a disordered porous matrix obtained by arresting randomly chosen particles in a one-component bulk fluid or one of the two components of a binary mixture.…

软凝聚态物质 · 物理学 2010-12-07 Vincent Krakoviack

The Lagrangian approach is natural to study issues of turbulent dispersion and mixing. We propose in this work a general Lagrangian stochastic model including velocity and acceleration as dynamical variables for inhomogeneous turbulent…

流体动力学 · 物理学 2020-05-01 Alessio Innocenti , Nicolas Mordant , Nick Stelzenmuller , Sergio Chibbaro

We prove explicit estimates for the error in random homogenization of degenerate, second-order Hamilton-Jacobi equations, assuming the coefficients satisfy a finite range of dependence. In particular, we obtain an algebraic rate of…

偏微分方程分析 · 数学 2013-12-31 Scott N. Armstrong , Pierre Cardaliaguet