Articles with "posteriori error" as a keyword



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An a posteriori error estimate for the generalized finite element method for transient heat diffusion problems

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Published in 2017 at "International Journal for Numerical Methods in Engineering"

DOI: 10.1002/nme.5440

Abstract: Summary We propose the study of a posteriori error estimates for time–dependent generalized finite element simulations of heat transfer problems. A residual estimate is shown to provide reliable and practically useful upper bounds for the… read more here.

Keywords: finite element; generalized finite; error; estimate ... See more keywords
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Reduced order modeling of random linear dynamical systems based on a new a posteriori error bound

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Published in 2018 at "International Journal for Numerical Methods in Engineering"

DOI: 10.1002/nme.5942

Abstract: Reduced order models (ROMs) are becoming increasingly useful for saving computational cost in response prediction of vibrating systems. In a number of applications such as uncertainty quantification, ROMs require robustness over a wide variation of… read more here.

Keywords: error; reduced order; error bound; posteriori error ... See more keywords
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A posteriori error estimates for the virtual element method

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Published in 2017 at "Numerische Mathematik"

DOI: 10.1007/s00211-017-0891-9

Abstract: An posteriori error analysis for the virtual element method (VEM) applied to general elliptic problems is presented. The resulting error estimator is of residual-type and applies on very general polygonal/polyhedral meshes. The estimator is fully… read more here.

Keywords: error; element method; element; posteriori error ... See more keywords
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A-posteriori error estimation for the finite point method with applications to compressible flow

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Published in 2017 at "Computational Mechanics"

DOI: 10.1007/s00466-017-1402-7

Abstract: An a-posteriori error estimate with application to inviscid compressible flow problems is presented. The estimate is a surrogate measure of the discretization error, obtained from an approximation to the truncation terms of the governing equations.… read more here.

Keywords: error; compressible flow; finite point; point method ... See more keywords
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A posteriori error estimates for non-stationary non-linear convection–diffusion equations

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Published in 2018 at "Calcolo"

DOI: 10.1007/s10092-018-0263-6

Abstract: Motivated by stochastic convection–diffusion problems we derive a posteriori error estimates for non-stationary non-linear convection–diffusion equations acting as a deterministic paradigm. The problem considered here neither fits into the standard linear framework due to its… read more here.

Keywords: convection diffusion; diffusion; convection; non linear ... See more keywords
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A posteriori error analysis and adaptive non-intrusive numerical schemes for systems of random conservation laws

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Published in 2019 at "BIT Numerical Mathematics"

DOI: 10.1007/s10543-019-00794-z

Abstract: This article considers one-dimensional random systems of hyperbolic conservation laws. Existence and uniqueness of random entropy admissible solutions for initial value problems of conservation laws, which involve random initial data and random flux functions, are… read more here.

Keywords: error analysis; non intrusive; random; conservation laws ... See more keywords
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Reliable a posteriori error estimation for state-constrained optimal control

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Published in 2017 at "Computational Optimization and Applications"

DOI: 10.1007/s10589-017-9908-7

Abstract: We derive a reliable a posteriori error estimator for a state-constrained elliptic optimal control problem taking into account both regularisation and discretisation. The estimator is applicable to finite element discretisations of the problem with both… read more here.

Keywords: control; posteriori error; reliable posteriori; optimal control ... See more keywords
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Asymptotically Exact Posteriori Error Estimates for the Local Discontinuous Galerkin Method Applied to Nonlinear Convection–Diffusion Problems

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Published in 2018 at "Journal of Scientific Computing"

DOI: 10.1007/s10915-018-0687-9

Abstract: In this paper, we present and analyze implicit a posteriori error estimates for the local discontinuous Galerkin (LDG) method applied to nonlinear convection–diffusion problems in one space dimension. Optimal a priori error estimates for the… read more here.

Keywords: estimates local; error; local discontinuous; solution ... See more keywords
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An Efficient DWR-Type a Posteriori Error Bound of SDFEM for Singularly Perturbed Convection–Diffusion PDEs

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Published in 2022 at "Journal of Scientific Computing"

DOI: 10.1007/s10915-021-01749-9

Abstract: This article deals with the residual-based a posteriori error estimation in the standard energy norm for the streamline-diffusion finite element method (SDFEM) for singularly perturbed convection–diffusion equations. The well-known dual-weighted residual (DWR) technique has been… read more here.

Keywords: error bound; posteriori error; sdfem singularly; diffusion ... See more keywords
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Recovery type a posteriori error estimates for the conduction convection problem

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Published in 2020 at "Numerical Algorithms"

DOI: 10.1007/s11075-020-00894-w

Abstract: In this paper, we construct a recovery type a posteriori error estimator based on the recovered gradient method to the stationary conduction convection equations. Besides, for these nonlinear partial differential equations, we establish reliability and… read more here.

Keywords: recovery; conduction convection; recovery type; posteriori error ... See more keywords
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Residual-based a posteriori error estimates for symmetric conforming mixed finite elements for linear elasticity problems

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Published in 2017 at "Science China Mathematics"

DOI: 10.1007/s11425-017-9181-2

Abstract: A posteriori error estimators for the symmetric mixed finite element methods for linear elasticity problems with Dirichlet and mixed boundary conditions are proposed. Reliability and efficiency of the estimators are proved. Finally, numerical examples are… read more here.

Keywords: linear elasticity; elasticity problems; posteriori error; mixed finite ... See more keywords