The analytic function expansion nodal (AFEN) method with half-interface averaged fluxes in mixed geometry nodes for analysis of pebble bed modular reactor (PBMR) cores

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The analytic function expansion nodal (AFEN) method has been successfully applied to the rectangular and hexagonal geometries in the cartesian coordinates system. In this paper, we extended the AFEN method to the cylindrical geometry in the R-Z coordinates for the analysis of pebble bed modular reactors (PBMRs). To treat the mixed geometry of rectangular and triangular nodes appearing in the lower periphery of the reactors, we used half-interface averaged fluxes as nodal unknowns. Numerical results obtained attest to their accuracy and applicability to practical problems.
Publisher
ATOMIC ENERGY SOC JAPAN
Issue Date
2003-05
Language
English
Article Type
Article
Citation

JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, v.40, no.5, pp.291 - 297

ISSN
0022-3131
URI
http://hdl.handle.net/10203/85147
Appears in Collection
NE-Journal Papers(저널논문)
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