PERFORMANCE OF THE EXPLICIT EULER AND PREDICTOR-CORRECTOR-BASED COUPLING SCHEMES IN MONTE CARLO BURNUP CALCULATIONS OF FAST REACTORS

被引：0

作者：

Mickus, Ignas ^{[1
]}

Dufek, Jan ^{[1
]}

Tuttelberg, Kaur ^{[2
]}

机构：

[1] KTH Royal Inst Technol, AlbaNova Univ Ctr, Div Nucl Reactor Technol, S-10691 Stockholm, Sweden

[2] Tallinn Univ Technol, Dept Elect Power Engn, EE-19086 Tallinn, Estonia

来源：

NUCLEAR TECHNOLOGY | 2015年 / 191卷 / 02期

关键词：

Monte Carlo; fast reactor; burn up calculations; NUMERICAL STABILITY;

D O I：

10.13182/NT14-48

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

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.

引用

页码：193 / 198

页数：6