Isogeometric analysis for the multigroup neutron diffusion equation with applications in reactor physics
File(s)1-s2.0-S0306454916310362-main.pdf (2.92 MB)
Published version
Author(s)
Welch, J
Kophazi, J
Owens, A
Eaton, M
Type
Journal Article
Abstract
Isogeometric Analysis (IGA) has been applied to heterogeneous reactor physics problems using the multigroup neutron dif-
fusion equation. IGA uses a computer-aided design (CAD) description of the geometry commonly built from Non-Uniform
Rational B-Splines (NURBS), which can exactly represent complicated curved shapes such as circles and cylinders, common
features in reactor design. This work has focused on comparing IGA to nite element analysis (FEA) for heterogeneous
reactor physics problems, including the OECD/NEA C5G7 LWR benchmark. The exact geometry and increased basis
function continuity contribute to the accuracy of IGA and an improvement over comparable FEA calculations has been
observed.
fusion equation. IGA uses a computer-aided design (CAD) description of the geometry commonly built from Non-Uniform
Rational B-Splines (NURBS), which can exactly represent complicated curved shapes such as circles and cylinders, common
features in reactor design. This work has focused on comparing IGA to nite element analysis (FEA) for heterogeneous
reactor physics problems, including the OECD/NEA C5G7 LWR benchmark. The exact geometry and increased basis
function continuity contribute to the accuracy of IGA and an improvement over comparable FEA calculations has been
observed.
Date Issued
2016-12-10
Date Acceptance
2016-11-13
Citation
Annals of Nuclear Energy, 2016, 101, pp.465-480
ISSN
1873-2100
Publisher
Elsevier Masson
Start Page
465
End Page
480
Journal / Book Title
Annals of Nuclear Energy
Volume
101
Copyright Statement
© 2016 The Authors. Published by Elsevier Ltd. This is an open access article under the CC-BY license (http://creativecommons.org/licenses/by/4.0/
).
).
Sponsor
Engineering & Physical Science Research Council (EPSRC)
Grant Number
EP/J002011/1
Subjects
0915 Interdisciplinary Engineering
0299 Other Physical Sciences
Publication Status
Published