System of refined finite-difference equations for a three-dimensional heterogeneous reactor

Previously, a method was developed for constructing finite-difference equations for a two-dimensional heterogeneous reactor. Its starting approximations coincide with the formulas of the traditional method of homogenization, while the refinements, achieved with the use of this method in the approxim...

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Veröffentlicht in:	Sov. At. Energy (Engl. Transl.); (United States) 1986-02, Vol.60 (2), p.113-117
Hauptverfasser:	Laletin, N. I., El'shin, A. V.
Format:	Artikel
Sprache:	eng
Schlagworte:	220100 - Nuclear Reactor Technology- Theory & Calculation COMPUTERIZED SIMULATION DIFFERENTIAL EQUATIONS EQUATIONS FINITE DIFFERENCE METHOD GENERAL STUDIES OF NUCLEAR REACTORS HETEROGENEOUS REACTOR CORES HOMOGENIZATION METHODS ITERATIVE METHODS LAPLACIAN MATHEMATICAL OPERATORS NEUTRON DIFFUSION EQUATION NEUTRON FLUX NEUTRON SPECTRA NEUTRON TRANSPORT THEORY NUMERICAL SOLUTION RADIATION FLUX REACTOR COMPONENTS REACTOR CORES REACTOR LATTICE PARAMETERS SIMULATION SPECTRA THREE-DIMENSIONAL CALCULATIONS TRANSPORT THEORY
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Beschreibung
Zusammenfassung:	Previously, a method was developed for constructing finite-difference equations for a two-dimensional heterogeneous reactor. Its starting approximations coincide with the formulas of the traditional method of homogenization, while the refinements, achieved with the use of this method in the approximations recommended for practical use, substantially improve the computational results obtained for nonuniform grids. This paper extends this method to a three-dimensional geometry.
ISSN:	0038-531X 1573-8205
DOI:	10.1007/BF01371174