Results 81 to 90 of about 383,945 (221)

Acceleration of Gas Flow Simulations in Dual-Continuum Porous Media Based on the Mass-Conservation POD Method

open access: yesEnergies, 2017
Reduced-order modeling approaches for gas flow in dual-porosity dual-permeability porous media are studied based on the proper orthogonal decomposition (POD) method combined with Galerkin projection.
Yi Wang, Shuyu Sun, Bo Yu
doaj   +1 more source

The Influence of Gradiations of Porous Structures Onto Their Effective Mechanical Behavior

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT Hybrid porous materials exploit graded pore architectures to tailor their mechanical performance. Here, FFT‐based homogenization of three‐dimensional volume elements is used to study the influence of different gradation concepts in an aluminum matrix at a fixed solid volume fraction of 80%.
Sarah Staub   +3 more
wiley   +1 more source

Rapid convergence of a Galerkin projection of the KdV equation

open access: yesComptes Rendus. Mathématique, 2005
In this Note, it is shown that a Fourier Galerkin approximation of the Korteweg–de Vries equation with periodic boundary conditions converges exponentially fast if the initial data can be continued analytically to a strip about the real axis.
openaire   +1 more source

TOBLER: An error analysis of Galerkin projection methods for linear systems with tensor product structure

open access: yes, 2020
Recent results on the convergence of a Galerkin projection method for the Sylvester equation are extended to more general linear systems with tensor product structure.
Christine Tobler   +2 more
core  

Superconvergence of the local discontinuous Galerkin method for nonlinear convection-diffusion problems

open access: yesJournal of Inequalities and Applications, 2017
In this paper, we discuss the superconvergence of the local discontinuous Galerkin methods for nonlinear convection-diffusion equations. We prove that the numerical solution is ( k + 3 / 2 ) $(k+3/2)$ th-order superconvergent to a particular projection ...
Hui Bi, Chengeng Qian
doaj   +1 more source

Polyhedral Elements Based on Scaled Boundary Parametrizations—A Comparative Study of Semi‐Analytical Versus IGA‐Based Formulations

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT This paper addresses polytope element formulations, which facilitate flexible meshing of complex geometries. While two‐dimensional polygon elements have gained popularity, we focus specifically on less explored three‐dimensional polyhedral element formulations.
Ajay Kumar Pasupuleti   +4 more
wiley   +1 more source

An Error Analysis Of Galerkin Projection Methods For Linear Systems With Tensor Product Structure [PDF]

open access: yes
Recent results on the convergence of a Galerkin projection method for the Sylvester equation are extended to more general linear systems with tensor product structure.
Kressner, Daniel   +2 more
core   +2 more sources

Apply implicitly restarted Arnoldi method to solving eigenvalue problem and reducing dimensionality in neutron diffusion

open access: yesHe jishu
国防科工局核能开发科研项目(cosSYST等热工水力计算分析软件的自主化研发与示范应用 ...
XIANG Zhaocai   +3 more
doaj   +1 more source

A Galerkin Method for a Gaseous Ignition Model

open access: yesSultan Qaboos University Journal for Science, 2012
We consider a Galerkin procedure to solve a parabolic integrodifferential equation that arises in a gas combustion model. This model has been proposed by Kassoy and Poland, and subsequently analyzed by Bebernes, Eberly and Bressan.
M. Salman, Jintae Kim
doaj   +1 more source

Shooting Methods for Boundary Value Problems of Fractional Differential Equations

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT We consider two‐point boundary value problems of fractional differential equations (FDEs) including a Caputo derivative with a fractional order in the range (0,1) or (1,2). The numerical solution of a boundary value problem is investigated using shooting methods.
Roland Pulch, Abhishek Kumar Singh
wiley   +1 more source

Home - About - Disclaimer - Privacy