PERFORMANCE OF THE EXPLICIT EULER AND PREDICTOR-CORRECTOR-BASED COUPLING SCHEMES IN MONTE CARLO BURNUP CALCULATIONS OF FAST REACTORS
2015 (English)In: Nuclear Technology, ISSN 0029-5450, Vol. 191, no 2, 193-198 p.Article in journal (Refereed) Published
We present a stability test of the explicit Euler and predictor-corrector based coupling schemes in Monte Carlo burnup calculations of the gas fast reactor fuel assembly. Previous studies have identified numerical instabilities of these coupling schemes in Monte Carlo burnup calculations of thermal-spectrum reactors due to spatial feedback induced neutron flux and nuclide density oscillations, where only sufficiently small time steps could guarantee acceptable precision. New results suggest that these instabilities are insignificant in fast-spectrum assembly burnup calculations, and the considered coupling schemes can therefore perform well in fast-spectrum reactor burnup calculations even with relatively large time steps. Note: Some figures in this technical note may be in color only in the electronic version.
Place, publisher, year, edition, pages
2015. Vol. 191, no 2, 193-198 p.
Monte Carlo, fast reactor, burn up calculations
IdentifiersURN: urn:nbn:se:kth:diva-173285ISI: 000359754800008ScopusID: 2-s2.0-84942465735OAI: oai:DiVA.org:kth-173285DiVA: diva2:852579
QC 201509092015-09-092015-09-092015-09-09Bibliographically approved