The spectral green's function nodal method for multigroup slab-geometry fixed-source S{sub N} problems with anisotropic scattering
Conference
·
OSTI ID:22212882
- Programa de Pos-graduacao em Modelagem Computacional, Institute Politecnico - ff RJ, Universidade do Estado do Rio de Janeiro - UERJ, P.O. Box 97282, 28610-974 Nova Friburgo, RJ (Brazil)
A generalization of the spectral Green's function (SGF) method is developed for multigroup, fixed-source, slab-geometry discrete ordinates (S{sub N}) problems with anisotropic scattering. The offered SGF method with the one-node block inversion (NBI) iterative scheme converges numerical solutions that are completely free from spatial truncation errors for multigroup slab-geometry S{sub N} problems with scattering anisotropy of order L, provided L < N. As a coarse-mesh numerical method, the SGF method generates numerical solutions that generally do not give detailed information on the problem solution profile, as the grid points can be located considerably away from each other. Therefore, presented here is a technique for the spatial reconstruction of the coarse-mesh solution generated by the multigroup SGF method. Numerical results are given to illustrate the method's accuracy. (authors)
- Research Organization:
- American Nuclear Society, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
- OSTI ID:
- 22212882
- Country of Publication:
- United States
- Language:
- English
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