A comparison of various nodal finite element formulations for neutron multigroup diffusion equations
Conference
·
OSTI ID:459260
- Universidad Nacional Autonoma de Mexico (Mexico)
- Universite Catholique de Louvain (Belgium)
- Universite Libre de Bruxelles (Belgium)
Three finite elements of nodal type are introduced which hopefully lead to convergence of O(h{sup 3}) in L{sup 2} norm. Two of these methods are new and achieve the same orders of convergence with less parameters. They are applied to the one-group diffusion equation under different formulations, namely several versions (without or with reduced integration and transverse integration) of the primal one and the mixed-hybrid one, and convergence rates are checked for a model problem exhibiting an analytical solution. These methods are finally applied to more realistic multigroup situations.
- OSTI ID:
- 459260
- Report Number(s):
- CONF-950420-; TRN: 97:007161
- Resource Relation:
- Conference: International conference on mathematics and computations, reactor physics, and environmental analyses, Portland, OR (United States), 30 Apr - 4 May 1995; Other Information: PBD: 1995; Related Information: Is Part Of Proceedings of the international conference on mathematics and computations, reactor physics, and environmental analyses. Volume 1 and 2; PB: 1629 p.
- Country of Publication:
- United States
- Language:
- English
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