A new Tone's method in APOLLO3® and its application to fast and thermal reactor calculations

Autor: Li Mao, Igor Zmijarevic

Publikováno v: Nuclear Engineering and Technology, Vol 49, Iss 6, Pp 1269-1286 (2017)

This paper presents a newly developed resonance self-shielding method based on Tone's method in APOLLO3® for fast and thermal reactor calculations. The new method is based on simplified models, the narrow resonance approximation for the slowing down

Externí odkaz: https://doaj.org/article/51ec920517b34604a5d879ee4b0b31e7

DIFFUSION PIECEWISE HOMOGENIZATION VIA FLUX DISCONTINUITY RATIOS

Autor: RICHARD SANCHEZ, GIORGIO DANTE, IGOR ZMIJAREVIC

Publikováno v: Nuclear Engineering and Technology, Vol 45, Iss 6, Pp 707-720 (2013)

We analyze piecewise homogenization with flux-weighted cross sections and preservation of averaged currents at the boundary of the homogenized domain. Introduction of a set of flux discontinuity ratios (FDR) that preserve reference interface currents

Externí odkaz: https://doaj.org/article/d64277b333614240b2c6c7eb784ddf5e

Application of the SPH method to account for the angular dependence of multigroup resonant cross sections in thermal reactor calculations

Autor: Kornilios Routsonis, Igor Zmijarevic, Li Mao

Publikováno v: Annals of Nuclear Energy
Annals of Nuclear Energy, 2019, 124, ⟨10.1016/j.anucene.2018.09.031⟩
Annals of Nuclear Energy, Elsevier Masson, 2019, 124, ⟨10.1016/j.anucene.2018.09.031⟩

International audience; The issue of the angular dependence of the multigroup total cross sections in the multigroup transport equation solution was recognized a long time ago. Only recently has its impacts on resonant self-shielding been identified.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::434ec2c4703eb1b55e9fcd14cd3bed4c
https://doi.org/10.1016/j.anucene.2018.09.031

A MOC-based neutron kinetics model for noise analysis

Autor: A. Gammicchia, Sandra Dulla, Simone Santandrea, Z. Stankovski, P. Mosca, Richard Sanchez, Igor Zmijarevic

Publikováno v: Annals of Nuclear Energy
Annals of Nuclear Energy, Elsevier Masson, 2020, 137, pp.107070-. ⟨10.1016/j.anucene.2019.107070⟩
Annals of Nuclear Energy, 2020, 137, pp.107070-. ⟨10.1016/j.anucene.2019.107070⟩

A 2-D noise model is implemented in the deterministic reactor code APOLLO3® to simulate a periodic oscillation of a structural component. The Two/Three Dimensional Transport (TDT) solver, using the Method of Characteristics, is adopted for the calcu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f2766411898a3a661ef1c27a2dad149
https://hal.archives-ouvertes.fr/hal-03488749

Analysis of alpha modes in multigroup diffusion

Autor: Daniele Tomatis, Richard Sanchez, Han Gyu Joo, Igor Zmijarevic

Publikováno v: Nuclear Engineering and Technology, Vol 49, Iss 6, Pp 1259-1268 (2017)
Nuclear Engineering and Technology
Nuclear Engineering and Technology, Elsevier, 2017, Special Issue on International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering 2017 (M&C 2017), 49 (6), pp.1259-1268
Nuclear Engineering and Technology, 2017, Special Issue on International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering 2017 (M&C 2017), 49 (6), pp.1259-1268

M&C 2017 - International Conference on Mathematics & Computational Methods Applied to Nuclear Science & Engineering,Jeju, Korea, April 16-20, 2017; International audience; The alpha eigenvalue problem in multigroup neutron diffusion is studied with p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f550d8129bb252a704871caf415d066
http://www.sciencedirect.com/science/article/pii/S1738573317303121