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相关论文: A Direct Mixed-Enriched Galerkin Method on Quadril…

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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

This work is focused on the entropy analysis of a semi-discrete nodal discontinuous Galerkin spectral element method (DGSEM) on moving meshes for hyperbolic conservation laws. The DGSEM is constructed with a local tensor-product…

数值分析 · 数学 2018-12-24 Gero Schnücke , Nico Krais , Thomas Bolemann , Gregor J. Gassner

The development and application of the Discontinuous Galerkin (DG) method have attracted great attention in computational fluid dynamics (CFD) com- munity in the past decades. The underlying reason for such an intensive investigation is due…

数值分析 · 数学 2016-01-20 Kun Xu , Chang Liu , Xiaodong Ren

Motivated by finite element spaces used for representation of temperature in the compatible finite element approach for numerical weather prediction, we introduce locally bounded transport schemes for (partially-)continuous finite element…

数值分析 · 数学 2016-03-23 C. J. Cotter , D. Kuzmin

We explore a linear inhomogeneous elasticity equation with random Lam\'e parameters. The latter are parameterized by a countably infinite number of terms in separated expansions. The main aim of this work is to estimate expected values…

数值分析 · 数学 2024-10-04 M. Clarke , J. Dick , Q. T. Le Gia , K. Mustapha , T. Tran

A new discontinuous Galerkin finite element method for the Stokes equations is developed in the primary velocity-pressure formulation. This method employs discontinuous polynomials for both velocity and pressure on general…

数值分析 · 数学 2021-05-05 Xiu Ye , Shangyou Zhang

We introduce a new concept of the locally conservative flux and investigate its relationship with the compatible discretization pioneered by Dawson, Sun and Wheeler [11]. We then demonstrate how the new concept of the locally conservative…

数值分析 · 数学 2024-05-28 Shihua Gong , Young-Ju Lee , Yukun Li , Yue Yu

We consider the generalized Forchheimer flows for slightly compressible fluids. Using Muskat's and Ward's general form of Forchheimer equations, we describe the fluid dynamics by a nonlinear degenerate parabolic equation for the density. We…

数值分析 · 数学 2015-08-04 Thinh Kieu

This paper explores the application of the multiscale finite element method (MsFEM) to address steady-state Stokes-Darcy problems with BJS interface conditions in highly heterogeneous porous media. We assume the existence of multiscale…

数值分析 · 数学 2024-01-09 Yachen Hong , Wenhan Zhang , Lina Zhao , Haibiao Zheng

Many equilibrated flux recovery methods for finite element solutions rely on ad hoc or method-specific techniques, limiting their generalizability and efficiency. In this work, we introduce the Equilibrated Averaging Residual Method (EARM),…

数值分析 · 数学 2025-03-06 Cuiyu He

This paper develops stable finite element pairs for the linear stress gradient elasticity model, overcoming classical elasticity's limitations in capturing size effects. We analyze mesh conditions to establish parameter-robust error…

数值分析 · 数学 2025-08-05 Ting Lin , Shudan Tian

In this paper, two flux-only least-squares finite element methods (LSFEM) for the linear hyperbolic transport problem are developed. The transport equation often has discontinuous solutions and discontinuous inflow boundary conditions, but…

数值分析 · 数学 2019-07-17 Qunjie Liu , Shun Zhang

The present paper uses the Galerkin Finite Element Method to numerically study the triple diffusive boundary layer flow of homogenous nanofluid over power-law stretching sheet with the effect of external magnetic field. The fluid is…

流体动力学 · 物理学 2017-08-21 Rangoli Goyal , Rama Bhargava

We develop higher order multipoint flux mixed finite element (MFMFE) methods for solving elliptic problems on quadrilateral and hexahedral grids that reduce to cell-based pressure systems. The methods are based on a new family of mixed…

数值分析 · 数学 2019-02-05 Ilona Ambartsumyan , Eldar Khattatov , Jeonghun Lee , Ivan Yotov

We present a hybrid continuous and discontinuous Galerkin spectral element approximation that leverages the advantages of each approach. The continuous Galerkin approximation is used on interior element faces where the equation properties…

数值分析 · 数学 2020-12-14 David A. Kopriva , Gregor J. Gassner

This paper presents a novel Stabilizer-Free weak Galerkin (WG) finite element method for solving the Brinkman equations without the need for conventional stabilization techniques. The Brinkman model, which mathematically blends features of…

数值分析 · 数学 2025-07-28 Chunmei Wang , Shangyou Zhang

$H^1$-conforming Galerkin methods on polygonal meshes such as VEM, BEM-FEM and Trefftz-FEM employ local finite element functions that are implicitly defined as solutions of Poisson problems having polynomial source and boundary data.…

数值分析 · 数学 2021-06-03 Jeffrey Ovall , Samuel Reynolds

This paper presents a pressure-robust enriched Galerkin (EG) method for the Brinkman equations with minimal degrees of freedom based on EG velocity and pressure spaces. The velocity space consists of linear Lagrange polynomials enriched by…

数值分析 · 数学 2024-04-02 Seulip Lee , Lin Mu

The Stokes equations play an important role in the incompressible flow simulation. In this paper, a novel divergence-free parametric mixed finite element method is proposed for solving three-dimensional Stokes equations on domains with…

数值分析 · 数学 2025-12-19 Lingxiao Li , Haiyan Su , He Zhang , Weiying Zheng

An open-sourced multiphase Darcy-Brinkman approach is proposed to simulate two-phase flow in hybrid systems containing both solid-free regions and porous matrices. This micro-continuum model is rooted in elementary physics and volume…

计算物理 · 物理学 2021-03-15 Francisco J. Carrillo , Ian C. Bourg , Cyprien Soulaine
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