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

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