@inproceedings{75fd2452921c41899741e93707e0aa1b,

title = "Whole–core neutron transport calculations without fuel-coolant homogenization",

abstract = "The variational nodal method implemented in the VARIANT code is generalized to perform full core transport calculations without spatial homogenization of cross sections at either the fuel-pin cell or fuel assembly level. The node size is chosen to correspond to one fuel-pin cell in the radial plane. Each node is divided into triangular finite subelements, with the interior spatial flux distribution represented by piecewise linear trial functions. The step change in the cross sections at the fuel-coolant interface can thus be represented explicitly in global calculations while retaining the full spherical harmonics capability of VARIANT. The resulting method is applied to a two-dimensional seven-group representation of a LWR containing MOX fuel assemblies. Comparisons are made of the accuracy of various space-angle approximations and of the corresponding CPU times.",

author = "Smith, {M. A.} and N. Tsoulfanidis and Lewis, {E. E.} and G. Palmiotti and Taiwo, {T. A.}",

note = "Funding Information: This work was supported by the U.S. Department of Energy under Contract No. ENG-38 and by U.S. Department of Energy Contract No. DE-FG07-98ID13632. Publisher Copyright: {\textcopyright} 2000 Proceedings of the PHYSOR 2000 - ANS International Topical Meeting on Advances in Reactor Physics and Mathematics and Computation into the Next Millennium. All rights reserved.; 2000 ANS International Topical Meeting on Advances in Reactor Physics and Mathematics and Computation into the Next Millennium, PHYSOR 2000 ; Conference date: 07-05-2020 Through 12-05-2020",

year = "2000",

language = "English (US)",

series = "Proceedings of the PHYSOR 2000 - ANS International Topical Meeting on Advances in Reactor Physics and Mathematics and Computation into the Next Millennium",

publisher = "American Nuclear Society",

booktitle = "Proceedings of the PHYSOR 2000 - ANS International Topical Meeting on Advances in Reactor Physics and Mathematics and Computation into the Next Millennium",

address = "United States",

}