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Erschienen in:
1987 | OriginalPaper | Buchkapitel
Evaluation of Systematically Derived Neutron Kinetics Models
verfasst von : Antonio F. V. Dias, Allan F. Henry
Erschienen in: Nuclear Simulation
Verlag: Springer Berlin Heidelberg
Enthalten in: Professional Book Archive
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A variational principle made stationary by the solution of the two-group, three-dimensional, time-dependent matrix equations and adjoint matrix equations embodied in the nodal code QUANDRY is used to derive a number of more approximate neutron kinetics models varying from point kinetics to a group-dependent, one-dimensional scheme. Numerical tests of the accuracy of these models substantiate the value of using adjoint weighted kinetics parameters. They also suggest that using unity weighted parameters (while not acceptable for all cases) is usually preferable to Galerkin weighting, and that certain one-dimensional models are actually inferior to the adjoint-weighted, point kinetics scheme.