中文
相关论文

相关论文: Error Estimates of Reiterated Stokes Systems via F…

200 篇论文

We present quasi-optimal a priori error estimates for general mixed finite element methods to approximate solutions of the Stokes problem subject to inhomogeneous Dirichlet boundary conditions. For the Scott-Vogelius element this yields…

数值分析 · 数学 2025-09-23 Franziska Eickmann , Ridgway L. Scott , Tabea Tscherpel

The main goal of the paper is to show new stability and localization results for the finite element solution of the Stokes system in $W^{1,\infty}$ and $L^{\infty}$ norms under standard assumptions on the finite element spaces on…

数值分析 · 数学 2019-07-17 Niklas Behringer , Dmitriy Leykekhman , Boris Vexler

In this work, we study the Bloch wave homogenization for the Stokes system with periodic viscosity coefficient. In particular, we obtain the spectral interpretation of the homogenized tensor. The presence of the incompressibility constraint…

偏微分方程分析 · 数学 2016-08-29 Grégoire Allaire , Tuhin Ghosh , Muthusamy Vanninathan

In this work, we present some new Carleman inequalities for Stokes and Oseen equations with non-homogeneous boundary conditions. These estimates lead to log type stability inequalities for the problem of recovering the solution of the…

偏微分方程分析 · 数学 2022-07-19 Mehdi Badra , Fabien Caubet , Jérémi Dardé

In this paper, we consider the homogenization problems for evolutionary incompressible Navier-Stokes system in three dimensional domains perforated with a large number of small holes which are periodically located. We first establish…

偏微分方程分析 · 数学 2022-12-14 Yong Lu , Peikang Yang

This work combines the consistency in lower-order differential operators with external approximations of functional spaces to obtain error estimates for finite difference finite volume schemes on unstructured non-uniform meshes. This…

数值分析 · 数学 2016-12-02 Qingshan Chen

We present a residual-based a posteriori error estimator for the hybrid high-order (HHO) method for the Stokes model problem. Both the proposed HHO method and error estimator are valid in two and three dimensions and support arbitrary…

数值分析 · 数学 2021-03-26 Yongchao Zhang , Liquan Mei , Gang Wang

We present analysis of two lowest-order hybridizable discontinuous Galerkin methods for the Stokes problem, while making only minimal regularity assumptions on the exact solution. The methods under consideration have previously been shown…

数值分析 · 数学 2023-07-07 Aaron Baier-Reinio , Sander Rhebergen , Garth N. Wells

In two and three dimensions, we design and analyze a posteriori error estimators for the mixed Stokes eigenvalue problem. The unknowns on this mixed formulation are the pseudotress, velocity and pressure. With a lowest order mixed finite…

数值分析 · 数学 2023-10-23 Felipe Lepe , Jesus Vellojin

We present a spectrally accurate method for the rapid evaluation of free-space Stokes potentials, i.e. sums involving a large number of free space Green's functions. We consider sums involving stokeslets, stresslets and rotlets that appear…

In this work we consider the two dimensional instationary Navier-Stokes equations with homogeneous Dirichlet/no-slip boundary conditions. We show error estimates for the fully discrete problem, where a discontinuous Galerkin method in time…

数值分析 · 数学 2026-05-20 Boris Vexler , Jakob Wagner

We construct and analyze a strongly consistent second-order finite difference scheme for the steady two-dimensional Stokes flow. The pressure Poisson equation is explicitly incorporated into the scheme. Our approach suggested by the first…

数值分析 · 数学 2018-09-05 Yury A. Blinkov , Vladimir P. Gerdt , Dmitry A. Lyakhov , Dominik L. Michels

We present a simple and efficient variational finite difference method for simulating time-dependent Stokes flow in the presence of irregular free surfaces and moving solid boundaries. The method uses an embedded boundary approach on…

计算物理 · 物理学 2011-05-25 Christopher Batty , Robert Bridson

We propose a scalable method for forward stochastic reachability analysis for uncontrolled linear systems with affine disturbance. Our method uses Fourier transforms to efficiently compute the forward stochastic reach probability measure…

系统与控制 · 计算机科学 2017-02-14 Abraham P. Vinod , Baisravan Homchaudhuri , Meeko M. K. Oishi

This work is devoted to the study of the limiting behaviour of the Stokes type fluid flows in porous media. The boundary conditions here are of the Fourier-Neumann's type on the boundary of the holes. Under the periodic hypothesis on the…

偏微分方程分析 · 数学 2024-12-25 Lazarus Signing

We study the convergence and error estimates of a finite volume method for the compressible Navier-Stokes-Fourier system with Dirichlet boundary conditions. Physical fluid domain is typically smooth and needs to be approximated by a…

数值分析 · 数学 2023-08-08 Maria Lukacova-Medvidova , Bangwei She , Yuhuan Yuan

In this paper we study the convergence rate of a finite volume approximation of the compressible Navier--Stokes--Fourier system. To this end we first show the local existence of a highly regular unique strong solution and analyse its global…

This paper describes the recently developed mixed mimetic spectral element method for the Stokes problem in the vorticity-velocity-pressure formulation. This compatible discretization method relies on the construction of a conforming…

数值分析 · 计算机科学 2012-06-14 Jasper Kreeft , Marc Gerritsma

In this paper we study the homogenization of the Dirichlet problem for the Stokes equations in a perforated domain with multiple microstructures. First, under the assumption that the interface between subdomains is a union of Lipschitz…

偏微分方程分析 · 数学 2022-11-30 Zhongwei Shen

The Stokes-Brinkman equations model flow in heterogeneous porous media by combining the Stokes and Darcy models of flow into a single system of equations. With suitable parameters, the equations can model either flow without detailed…

数值分析 · 数学 2019-08-28 Kevin Williamson , Pavel Burda , Bedřich Sousedík