Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5474999 | Annals of Nuclear Energy | 2017 | 13 Pages |
Abstract
Different spatial modes can be defined for the neutron diffusion equation such as the λ,α and γ-modes. These modes have been successfully used for the analysis of nuclear reactor characteristics. In this work, these modes are studied using a high order finite element method to discretize the equations and also different methods to solve the resulting algebraic eigenproblems, are compared. Particularly, Krylov subspace methods and block-Newton methods have been studied. The performance of these methods has been tested in several 3D benchmark problems: a homogeneous reactor and several configurations of NEACRP reactor.
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Authors
A. Carreño, A. Vidal-Ferrà ndiz, D. Ginestar, G. Verdú,