Results 11 to 20 of about 27,923 (223)

A Generalized Multiscale Finite Element Method for poroelasticity problems I: Linear problems [PDF]

open access: yesJournal of Computational and Applied Mathematics, 2016
arXiv admin note: text overlap with arXiv:1309.6030 by other ...
Brown, Donald L., Vasilyeva, Maria
openaire   +5 more sources

Generalized Multiscale Finite Element Method and Balanced Truncation for Parameter-Dependent Parabolic Problems

open access: yesMathematics, 2023
We propose a generalized multiscale finite element method combined with a balanced truncation to solve a parameter-dependent parabolic problem. As an updated version of the standard multiscale method, the generalized multiscale method contains the ...
Shan Jiang   +3 more
doaj   +1 more source

An Online Generalized Multiscale Finite Element Method for Unsaturated Filtration Problem in Fractured Media

open access: yesMathematics, 2021
In this paper, we present a multiscale model reduction technique for unsaturated filtration problem in fractured porous media using an Online Generalized Multiscale finite element method. The flow problem in unsaturated soils is described by the Richards
Denis Spiridonov   +3 more
doaj   +1 more source

GENERALIZED MULTISCALE FINITE ELEMENT METHODS: OVERSAMPLING STRATEGIES [PDF]

open access: yesInternational Journal for Multiscale Computational Engineering, 2014
In this paper, we propose oversampling strategies in the Generalized Multiscale Finite Element Method (GMsFEM) framework. The GMsFEM, which has been recently introduced in [12], allows solving multiscale parameter-dependent problems at a reduced computational cost by constructing a reduced-order representation of the solution on a coarse grid. The main
Efendiev, Yalchin R.   +3 more
openaire   +3 more sources

Online Multiscale Finite Element Simulation of Thermo-Mechanical Model with Phase Change

open access: yesComputation, 2023
This paper presents a thermo-mechanical model with phase transition considering changes in the mechanical properties of the medium. The proposed thermo-mechanical model is described by a system of partial differential equations for temperature and ...
Dmitry Ammosov, Maria Vasilyeva
doaj   +1 more source

Generalized Multiscale Finite Element Method for Elastic Wave Propagation in the Frequency Domain

open access: yesComputation, 2020
In this work, we consider elastic wave propagation in fractured media. The mathematical model is described by the Helmholtz problem related to wave propagation with specific interface conditions (Linear Slip Model, LSM) on the fracture in the frequency ...
Uygulana Gavrilieva   +2 more
doaj   +1 more source

Multiscale Multiphysics Modeling of the Infiltration Process in the Permafrost

open access: yesMathematics, 2021
In this work, we design a multiscale simulation method based on the Generalized Multiscale Finite Element Method (GMsFEM) for numerical modeling of fluid seepage under permafrost condition in heterogeneous soils.
Sergei Stepanov   +2 more
doaj   +1 more source

Mixed Generalized Multiscale Finite Element Methods and Applications [PDF]

open access: yesMultiscale Modeling & Simulation, 2015
In this paper, we present a mixed Generalized Multiscale Finite Element Method (GMsFEM) for solving flow in heterogeneous media. Our approach constructs multiscale basis functions following a GMsFEM framework and couples these basis functions using a mixed finite element method, which allows us to obtain a mass conservative velocity field. To construct
Chung, Eric T.   +2 more
openaire   +4 more sources

Online Coupled Generalized Multiscale Finite Element Method for the Poroelasticity Problem in Fractured and Heterogeneous Media

open access: yesFluids, 2021
In this paper, we consider the poroelasticity problem in fractured and heterogeneous media. The mathematical model contains a coupled system of equations for fluid pressures and displacements in heterogeneous media.
Aleksei Tyrylgin   +4 more
doaj   +1 more source

Multiscale Modeling of SiCf/SiC Nuclear Fuel Cladding Based on FE-Simulation of Braiding Process

open access: yesFrontiers in Materials, 2021
A generalized multiscale (micro-macro) finite element (FE) model for SiC-fiber reinforced SiC-matrix ceramic (SiCf/SiC) nuclear fuel claddings is established.
Yajie Feng   +18 more
doaj   +1 more source

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