Home / Store / Journals / Electronic Articles / Nuclear Science and Engineering / Volume 139 / Number 1
Keqiang Ruan, Xiaogang Xue, Xuedong Fu
Nuclear Science and Engineering
Volume 139 / Number 1 / September 2001 / Pages 105-110
Format:electronic copy (download)
An alternate formulation of the two-group transverse-integration-based nodal expansion method is presented. In this formulation, the two-group problem is formulated by using the relationship between the group fluxes derived from an analytical procedure. As a result, a simplified procedure for the thermal group is suggested. The numerical results of the benchmark problems show that the new formulation of the nodal expansion method has the potential to accurately solve multidimensional problems with a considerable reduction in the computational cost required by the conventional two-group scheme.
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