Results 21 to 30 of about 1,616,171 (158)

Error control in h- and hp-adaptive FEM for Signorini's problem [PDF]

open access: yesJournal of Numerical Mathematics, 2009
Summary: This paper presents a posteriori finite element error estimates for Signorini's problem. The discretization is based on a mixed variational formulation proposed by Haslinger et al. which is extended to higher-order finite elements. The a posteriori error control relies on estimating the discretization error of an auxiliary problem which is ...
openaire   +1 more source

Architecture of iterative solvers for hp-adaptive finite element codes

open access: yesComputer Assisted Methods in Engineering and Science, 2017
We present a layered architecture for iterative solvers of linear equations, designed to allow for easy integration with existing hp-adaptive FEM codes.
Przemysław Płaszewski   +2 more
doaj   +1 more source

Dispersive properties of high order nedelec/edge element approximation of the time-harmonic Maxwell equations [PDF]

open access: yes, 2004
The dispersive behaviour of high-order Næ#169;dæ#169;lec element approximation of the time harmonic Maxwell equations at a prescribed temporal frequency ω on tensor-product meshes of size h is analysed.
Ainsworth, Mark
core   +4 more sources

Monolithic discretization of linear thermoelasticity problems via adaptive multimesh hp-FEM [PDF]

open access: yes, 2010
In linear thermoelasticity models, the temperature T and the displacement components u1,u2 exhibit large qualitative differences: while T typically is very smooth everywhere in the domain, the displacements u1,u2 have singular gradients (stresses) at re ...
Cerveny, J.   +3 more
core   +1 more source

Preventing deadlock during anisotropic 2D mesh adaptation in hp-adaptive FEM

open access: yesJournal of Computational Science, 2013
Abstract The paper presents a grammar for anisotropic two-dimensional mesh adaptation in hp -adaptive Finite Element Method with rectangular elements. Expressing mesh transformations as grammar productions is useful for concurrency analysis thanks to exhibiting the partial causality order (Lamport relationship) between atomic operations.
Arkadiusz Szymczak   +3 more
openaire   +2 more sources

An hp-version discontinuous Galerkin method for integro-differential equations of parabolic type [PDF]

open access: yes, 2011
We study the numerical solution of a class of parabolic integro-differential equations with weakly singular kernels. We use an $hp$-version discontinuous Galerkin (DG) method for the discretization in time.
Brunner, Hermann   +3 more
core   +4 more sources

Design of interface modules for flexible coupling of finite element codes with solvers of linear equations.

open access: yesComputer Assisted Methods in Engineering and Science, 2017
This paper presents the design of flexible interfaces between finite element (FE) codes and solvers of linear equations. The main goal of the design is to allow for coupling FE codes that use different formulations (linear, non-linear, time dependent ...
Krzysztof Banaś, Kazimierz Chłoń
doaj   +1 more source

Implementation of $hp$-adaptive discontinuous finite element methods in Dune-Fem

open access: yesCoRR, 2016
In this paper we describe generic algorithms and data structures for the implementation of $hp$-adaptive discontinuous finite element methods in the Dune-Fem library. Special attention is given to the often tedious and error-prone task of transferring user data during adaptation.
openaire   +3 more sources

Impact of Sahelian Climate Variables on Solar Photovoltaic Output

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT Solar photovoltaic (PV) energy is a critical pathway for advancing the energy transition in the Sahel. However, PV module performance in this region is strongly constrained by extreme climatic conditions. This study investigates the effects of (1) wind speed, (2) relative humidity, (3) temperature, (4) dust deposition, and (5) solar irradiance
Koraou Nomaou Abdou‐Rahimou   +5 more
wiley   +1 more source

Azobenzene's Cross‐Scale Optics and Photonics: Molecular Photoswitching, Mesoscopic Material Motions, and Adaptive Devices

open access: yesAdvanced Materials, Volume 38, Issue 56, 8 October 2026.
Azobenzene photoswitches translate molecular‐scale E/Z photoisomerization into macroscopic material responses and device‐level photonic functions. This Review highlights how azobenzene research has evolved from molecular photochemistry to photoalignment, mass migration, photomechanics, and heat release, ultimately enabling holography, reconfigurable ...
Heeju Son   +20 more
wiley   +1 more source

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