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DC Field | Value | Language |
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dc.citation.endPage | 85 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 74 | - |
dc.citation.title | NUCLEAR SCIENCE AND ENGINEERING | - |
dc.citation.volume | 156 | - |
dc.contributor.author | Lee, Hyun Chul | - |
dc.contributor.author | Noh, Jae Man | - |
dc.contributor.author | Joo, Hyung Kook | - |
dc.contributor.author | Lee, Deokjung | - |
dc.contributor.author | Downar, Thomas J. | - |
dc.date.accessioned | 2023-12-22T09:15:36Z | - |
dc.date.available | 2023-12-22T09:15:36Z | - |
dc.date.created | 2014-10-17 | - |
dc.date.issued | 2007-05 | - |
dc.description.abstract | The purpose of this paper is to present the Fourier convergence analysis of four methods for performing two-dimensional/one-dimensional (2-D/1-D) coupling to solve neutron diffusion eigenvalue problems (EVPs). The four methods differ principally in the manner of using the interface currents or node average fluxes to perform the 2-D/1-D coupling. Method A uses net currents, method B employs partial currents, method C uses a current correction factor, and method D uses an analytic expression for the axial net currents. In a previous paper, we analyzed the convergence behavior of these methods for the 2-D/1-D coupling of the fixed source problem (FSP). In this paper, the convergence performance of these methods is analyzed for the EVP using a one-group neutron diffusion EVP in a homogeneous infinite slab geometry. Among the four methods, method A diverges for small mesh sizes as it did in the FSP, whereas the other methods are stable regardless of the mesh size. The spectral radii of methods C and D are identical while the latter had a smaller spectral radius than the former in an FSP. The spectral radii of methods C and D are smaller than that of method B in the range of practical mesh size. The spectral radii approach one for all the methods as the mesh size increases, while in the FSP the spectral radii of method B approached a finite positive value and those of the other methods approached zero. For practical applications, method C has several advantages over the other methods and is the preferred 2-D/1-D coupling method for EVPs. | - |
dc.identifier.bibliographicCitation | NUCLEAR SCIENCE AND ENGINEERING, v.156, no.1, pp.74 - 85 | - |
dc.identifier.issn | 0029-5639 | - |
dc.identifier.scopusid | 2-s2.0-34248230260 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/7399 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=34248230260 | - |
dc.identifier.wosid | 000246115700006 | - |
dc.language | 영어 | - |
dc.publisher | AMER NUCLEAR SOCIETY | - |
dc.title | Fourier convergence analysis of two-dimensional/one-dimensional coupling methods for the three-dimensional neutron diffusion eigenvalue problems | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | EQUATIONS | - |
dc.subject.keywordPlus | GEOMETRY | - |
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