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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.
Cited literature [18 references]
https://hal-cea.archives-ouvertes.fr/cea-02339617
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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
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
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201800002352.pdf
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