On the spectral Green’s function-constant nodal method for fixed-source SN problems in X,Y-geometry with arbitrary L’th-order anisotropic scattering

Autores

DOI:

https://doi.org/10.15392/bjrs.v8i3A.1490

Palavras-chave:

energy multigroup, fixed source, discrete ordinates, anisotropic scattering.

Resumo

Presented here is an extension of the spectral Green’s function-constant nodal (SGF-CN) method for the numerical solution of energy multigroup, fixed-source, discrete ordinates (SN) problems in X, Y-geometry with arbitrary L’th-order of scattering anisotropy, provided L<N. This analytical coarse-mesh method uses the multigroup SGF method for numerically solving the one-dimensional transverse-integrated SN nodal equations with constant approximations for the transverse leakage terms. The only approximations in the present version of the SGF-CN method occur in these transverse leakage terms, as the energy-group transfer scattering source terms are treated analytically within the offered method. Numerical results to typical model problems are given to illustrate the method’s accuracy and to analyze the efficiency of the offered SGF-CN computer code for neutral particle transport calculations.  

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Biografia do Autor

  • Welton Menezes, Universidade Federal Fluminense
    Welton Menezes is a professor at the Exact Sciences Department at the Fluminense Federal University (UFF, Volta Redonda-Rio de Janeiro). He obtained his Doctoral degree in computational modeling from the University of the State of Rio de Janeiro, 2012. His current lines of research are: Computational Neutronics; Direct Shielding Problems and Inverse Problems of Analytical Reconstruction.

Referências

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Publicado

09-02-2021

Edição

v. 8 n. 3A (Suppl.) (2020)

Seção

XXI Meeting on Nuclear Reactor Physics and Thermal Hydraulics (XXI ENFIR) and VI ENIN 2019

Licença

Direitos autorais (c) 2021 Brazilian Journal of Radiation Sciences

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Como Citar

On the spectral Green’s function-constant nodal method for fixed-source SN problems in X,Y-geometry with arbitrary L’th-order anisotropic scattering. Brazilian Journal of Radiation Sciences, Rio de Janeiro, Brazil, v. 8, n. 3A (Suppl.), 2021. DOI: 10.15392/bjrs.v8i3A.1490. Disponível em: https://bjrs.org.br/revista/index.php/REVISTA/article/view/1490. Acesso em: 17 jul. 2025.