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In this paper, we study the stochastic-periodic homogenization of Non-stationary Navier-Stokes Type Equations on anisotropic heterogeneous media. More precisely, we are interested in the stochastic-periodic homogenization of its variational…

偏微分方程分析 · 数学 2024-02-07 Tchinda Franck , Fotso Tachago Joel , Dongho Joseph

This paper derives the stochastic homogenization for two dimensional Navier--Stokes equations with random coefficients. By means of weak convergence method and Stratonovich--Khasminskii averaging principle approach, the solution of two…

偏微分方程分析 · 数学 2024-12-18 Dong Su , Hui Liu , Yangyang Shi

In {\em{Holm}, Proc. Roy. Soc. A 471 (2015)} stochastic fluid equations were derived by employing a variational principle with an assumed stochastic Lagrangian particle dynamics. Here we show that the same stochastic Lagrangian dynamics…

偏微分方程分析 · 数学 2017-10-25 Colin J Cotter , Georg A Gottwald , Darryl D Holm

We present stochastic homogenization results for viscous Hamilton-Jacobi equations using a new argument which is based only on the subadditive structure of maximal subsolutions (solutions of the "metric problem"). This permits us to give…

偏微分方程分析 · 数学 2016-01-20 Scott N. Armstrong , Hung V. Tran

Stochastic-periodic homogenization is studied for the Maxwell equations with nonlinear and periodic electric conductivity. It is shown by the stochastic-two-scale convergence method that the sequence of solutions of a class of highly…

偏微分方程分析 · 数学 2023-12-27 Joel Fotso Tachago , Hubert Nnang

Many time-dependent linear partial differential equations of mathematical physics and continuum mechanics can be phrased in the form of an abstract evolutionary system defined on a Hilbert space. In this paper we discuss a general framework…

偏微分方程分析 · 数学 2019-05-09 Stefan Neukamm , Mario Varga , Marcus Waurick

We consider the homogenization of monotone systems of viscous Hamilton-Jacobi equations with convex nonlinearities set in the stationary, ergodic setting. The primary focus of this paper is on collapsing systems which, as the microscopic…

偏微分方程分析 · 数学 2012-05-09 Benjamin J. Fehrman

We develop a quantitative theory of stochastic homogenization in the more general framework of differential forms. Inspired by recent progress in the uniformly elliptic setting, the analysis relies on the study of certain subadditive…

偏微分方程分析 · 数学 2020-12-29 Paul Dario

We develop a quantitative theory of stochastic homogenization for linear, uniformly parabolic equations with coefficients depending on space and time. Inspired by recent works in the elliptic setting, our analysis is focused on certain…

偏微分方程分析 · 数学 2018-06-13 Scott Armstrong , Alexandre Bordas , Jean-Christophe Mourrat

The notion of periodic two-scale convergence and the method of periodic unfolding are prominent and useful tools in multiscale modeling and analysis of PDEs with rapidly oscillating periodic coefficients. In this paper we are interested in…

偏微分方程分析 · 数学 2021-05-28 Martin Heida , Stefan Neukamm , Mario Varga

Motivated by the fact that in nature almost all phenomena behave randomly in some scales and deterministically in some other scales, we build up a framework suitable to tackle both deterministic and stochastic homogenization problems…

偏微分方程分析 · 数学 2012-05-01 Mamadou Sango , Jean Louis Woukeng

We propose a finite element discretization for the steady, generalized Navier-Stokes equations for fluids with shear-dependent viscosity, completed with inhomogeneous Dirichlet boundary conditions and an inhomogeneous divergence constraint.…

数值分析 · 数学 2023-10-09 Julius Jeßberger , Alex Kaltenbach

A phase-field model for two-phase immiscible, incompressible porous media flow with surface tension effects is considered. The pore-scale model consists of a strongly coupled system of Stokes-Cahn-Hilliard equations. The fluids are…

偏微分方程分析 · 数学 2023-01-25 Nitu Lakhmara , Hari Shankar Mahato

We study the qualitative homogenization of second order viscous Hamilton-Jacobi equations in space-time stationary ergodic random environments. Assuming that the Hamiltonian is convex and superquadratic in the momentum variable (gradient)…

偏微分方程分析 · 数学 2017-02-07 Wenjia Jing , Panagiotis E. Souganidis , Hung V. Tran

We study the Navier-Stokes equations governing the motion of isentropic compressible fluid in three dimensions driven by a multiplicative stochastic forcing. In particular, we consider a stochastic perturbation of the system as a function…

偏微分方程分析 · 数学 2017-01-03 Dominic Breit , Martina Hofmanová

We develop stochastic mixed finite element methods for spatially adaptive simulations of fluid-structure interactions when subject to thermal fluctuations. To account for thermal fluctuations, we introduce a discrete fluctuation-dissipation…

介观与纳米尺度物理 · 物理学 2023-02-28 Pat Plunkett , Jon Hu , Chris Siefert , Paul J. Atzberger

In this work, we design and analyze semi/fully-discrete virtual element approximations for the time-dependent Navier--Stokes-Cahn--Hilliard equations, modeling the dynamics of two-phase incompressible fluid flows with diffuse interfaces. A…

数值分析 · 数学 2026-01-27 Alberth Silgado , Giuseppe Vacca

We prove stochastic homogenization for a class of non-convex and non-coercive first-order Hamilton-Jacobi equations in a finite-range-dependence environment for Hamiltonians that can be expressed by a max-min formula. Exploiting the…

偏微分方程分析 · 数学 2025-10-30 Andrea Davini , Raimundo Saona , Bruno Ziliotto

This work develops a quantitative homogenization theory for random suspensions of rigid particles in a steady Stokes flow, and completes recent qualitative results. More precisely, we establish a large-scale regularity theory for this…

偏微分方程分析 · 数学 2021-03-12 Mitia Duerinckx , Antoine Gloria

We develop a general theory dealing with stochastic models for dynamical systems that are governed by various nonlinear, ordinary or partial differential, equations. In particular, we address the problem how flows in the random medium…

chao-dyn · 物理学 2009-10-31 Piotr Garbaczewski
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