Results 41 to 50 of about 459 (70)

Generalized Multiscale Finite Element Methods for problems in perforated heterogeneous domains [PDF]

open access: yes, 2015
Complex processes in perforated domains occur in many real-world applications. These problems are typically characterized by physical processes in domains with multiple scales (see Figure 1 for the illustration of a perforated domain).
Chung, Eric T.   +3 more
core   +2 more sources

Multiscale Simulations for Coupled Flow and Transport Using the Generalized Multiscale Finite Element Method

open access: yesComputation, 2015
In this paper, we develop a mass conservative multiscale method for coupled flow and transport in heterogeneous porous media. We consider a coupled system consisting of a convection-dominated transport equation and a flow equation.
Eric T. Chung   +3 more
doaj   +1 more source

Computational Multiscale Methods for Linear Poroelasticity with High Contrast [PDF]

open access: yes, 2018
In this work, we employ the Constraint Energy Minimizing Generalized Multiscale Finite Element Method (CEM-GMsFEM) to solve the problem of linear heterogeneous poroelasticity with coefficients of high contrast.
Altmann, Robert   +5 more
core   +2 more sources

Goal-oriented adaptivity for GMsFEM

open access: yesJournal of Computational and Applied Mathematics, 2016
16 pages, 4 ...
Eric T. Chung   +2 more
openaire   +3 more sources

Generalized multiscale finite element methods for wave propagation in heterogeneous media [PDF]

open access: yes, 2013
Numerical modeling of wave propagation in heterogeneous media is important in many applications. Due to the complex nature, direct numerical simulations on the fine grid are prohibitively expensive.
Chung, Eric T.   +2 more
core   +3 more sources

Expanded mixed multiscale finite element methods and their applications for flows in porous media [PDF]

open access: yes, 2012
We develop a family of expanded mixed Multiscale Finite Element Methods (MsFEMs) and their hybridizations for second-order elliptic equations. This formulation expands the standard mixed Multiscale Finite Element formulation in the sense that four ...
Arnold D. N.   +4 more
core   +4 more sources

A Generalized Multiscale Finite Element Method for Poroelasticity Problems I: Linear Problems [PDF]

open access: yes, 2015
In this paper, we consider the numerical solution of poroelasticity problems that are of Biot type and develop a general algorithm for solving coupled systems.
Brown, Donald L., Vasilyeva, Maria
core   +2 more sources

Convergence analysis for GMsFEM approximation of elliptic eigenvalue problems

open access: yesJournal of Computational and Applied Mathematics, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ma, Lingling, Jiang, Lijian
openaire   +1 more source

A Hybrid Model Reduction Method for Dual-Continuum Model with Random Inputs

open access: yesComputation
In this paper, a hybrid model reduction method for solving flows in fractured media is proposed. The approach integrates the Generalized Multiscale Finite Element Method (GMsFEM) with a novel variable-separation (VS) technique.
Lingling Ma
doaj   +1 more source

Nonlinear nonlocal multicontinua upscaling framework and its applications

open access: yes, 2018
In this paper, we discuss multiscale methods for nonlinear problems. The main idea of these approaches is to use local constraints and solve problems in oversampled regions for constructing macroscopic equations.
Chung, Eric T.   +3 more
core   +1 more source

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