Proceedings of the Korean Nuclear Society Conference (한국원자력학회:학술대회논문집)

Korean Nuclear Society (한국원자력학회)
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Extension of AFEN Methodology to Multigroup Problems in Hexagonal-Z Geometry

  • Cho, Nam-Zin (Korea Advanced Institute of Science and Technology Department of Nuclear Engineering) ;
  • Kim, Yong-Hee (Korea Advanced Institute of Science and Technology Department of Nuclear Engineering) ;
  • Park, Keon-Woo (Korea Advanced Institute of Science and Technology Department of Nuclear Engineering)
  • Published : 1996.05.01
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Abstract

The analytic function expansion nodal (AFEN) method has been successfully applied to two-group neutron diffusion problems. In this paper, the AFEN method is extended to solve general multigroup equations for any type of geometries. Also, a suite of new nodal codes based on the extended AFEN theory is developed for hexagonal-z geometry and applied to several benchmark problems. Numerical results obtained attest to their accuracy and applicability to practical problems.

Keywords