Skip to Main content Skip to Navigation
Journal articles

Verification of iterative matrix solutions for multipoint kinetics equations

Abstract : Multipoint kinetic equation systems have been solved numerically using matrix algebra software and 1st to 4th order implicit schemes based on single-step matrix propagators. These matrix schemes have been validated successfully on demanding point kinetics benchmarks with various prescribed reactivity insertions. Verification tests have also been performed on a simple 3-region fast reactor core model with asymmetric step or ramp reactivity insertions and cross-checked with the multipoint kinetics SACRE code developed at INL and based on existing and validated stiff ODE solver packages. Accurate results can be obtained at a limited time expense. The reason for intriguing results obtained in some transients has been elucidated and linked to the multipoint matrix coefficient interpolation method during the transient.
Complete list of metadata

Cited literature [18 references]  Display  Hide  Download
Contributor : Bibliothèque CADARACHE Connect in order to contact the contributor
Submitted on : Monday, November 4, 2019 - 1:23:38 PM
Last modification on : Wednesday, March 3, 2021 - 3:34:01 PM
Long-term archiving on: : Wednesday, February 5, 2020 - 9:05:44 PM


Files produced by the author(s)


  • HAL Id : cea-02339617, version 1



J. Tommasi, G. Palmiotti. Verification of iterative matrix solutions for multipoint kinetics equations. Annals of Nuclear Energy, Elsevier Masson, 2018, 124, pp.357-371. ⟨cea-02339617⟩



Record views


Files downloads