Reconstrução intranodal da solução numérica gerada pelo método espectronodal constante para problemas Sn de autovalor em geometria retangular bidimensional / Nodal reconstruction scheme for the numerical solution generated by the constant spectral nodal method for Sn eingenvalue problem in X, Y geometry

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

In this dissertation the spectral nodal method SD-SGF-CN, cf. spectral diamond spectral Green s function - constant nodal, is used to determine the angular fluxes averaged along the edges of the homogenized nodes in heterogeneous domains. Using these results, we developed an algorithm for the reconstruction of the node-edge average angular fluxes within the nodes of the spatial grid set up on the domain, since more localized numerical solutions are not generated by coarse-mesh numerical methods. Numerical results are presented to illustrate the accuracy of the algorithm we offer.

ASSUNTO(S)

equação do transporte de nêutrons nodal methods transport theory - discrete ordinates method teoria cinética do transporte método das ordenadas discretas neutrons - transportation - simulation methods métodos espectronodais engenharia nuclear transport equation eigenvalue problems problemas de autovalor nêutrons transporte métodos de simulação

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