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pro vyhledávání: '"J. Kópházi"'
The Continuous Galerkin Virtual Element Method (CG-VEM) is a recent innovation in spatial discretization methods that can solve partial differential equations (PDEs) using polygonal (2D) and polyhedral (3D) meshes. Recently, a new formulation of CG-V
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eace95eee794a40a0e0e56622e8c144d
http://hdl.handle.net/10044/1/99011
http://hdl.handle.net/10044/1/99011
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Akademický článek
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This paper describes a methodology that enables NURBS (Non-Uniform Rational B-spline) based Isogeometric Analysis (IGA) to be locally refined. The methodology is applied to continuous Bubnov-Galerkin IGA spatial discretisations of second-order forms
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff34819131bec7278a694a5f376529a7
The Continuous Galerkin Virtual Element Method (CG-VEM) is a recent innovation in spatial discretisation methods that can solve partial differential equations (PDEs) using polygonal (2D) and polyhedral (3D) meshes. This paper presents the first appli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9908fa2d74e7a513a5870e5f90de34f
Publikováno v:
Progress in Nuclear Energy. 105:175-184
When using unstructured mesh finite element methods for neutron diffusion problems, hexahedral elements are in most cases the most computationally efficient and accurate for a prescribed number of degrees of freedom. However, it is not always practic
Publikováno v:
Journal of Computational and Theoretical Transport. 46:427-458
This paper uses local dual weighted residual (DWR) error indicators to flag cells for goal-based refinement in a 1-D diamond difference (DD) discretisation of the discrete ordinate (SN) neutron transport equations. Goal-orientated adaptive mesh refin
Autor:
R. S. Jeffers, Jean C. Ragusa, Frank Hülsemann, Matthew D. Eaton, François Févotte, J. Kópházi
Publikováno v:
Journal of Computational Physics. 335:179-200
The quantity of interest (QoI) associated with a solution of a partial differential equation (PDE) is not, in general, the solution itself, but a functional of the solution. Dual weighted residual (DWR) error estimators are one way of providing an es
Publikováno v:
Annals of Nuclear Energy. 101:465-480
Isogeometric Analysis (IGA) has been applied to heterogeneous reactor physics problems using the multigroup neutron diffusion equation. IGA uses a computer-aided design (CAD) description of the geometry commonly built from Non-Uniform Rational B-Spli
Publikováno v:
Annals of Nuclear Energy. 149:107752
Dynamic Monte Carlo (DMC) simulation of realistic nuclear reactors requires powerful variance reduction methods for even a few seconds of real time calculations. State-of-the-art numerical methods deal with the dynamic nature of the problem via succe