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Modification of a Dynamic Monte Carlo Technique to Simplify and Accelerate Transient Analysis with Feedback

Authors :
Ghaderi Mazaher, Meysam
Salehi, Ali Akbar
Vosoughi, Naser
Source :
Nuclear Science and Engineering; April 2022, Vol. 196 Issue: 4 p395-408, 14p
Publication Year :
2022

Abstract

AbstractIn this paper, a simpler approach compared to the existing approaches is developed to analyze nuclear reactor dynamics based on the explicit Monte Carlo method. A new population control method is also introduced to prevent neutron population growth and consequent computer memory shortages, which also increases simulation speed. The scheme is applied for time-dependent particle tracking in three-dimensional arbitrary geometries in the presence of feedbacks through a code named MCSP-Explicit. Changes in material density, as well as geometry dimensions, are also considered during simulation. MCSP-Explicit can be run with either continuous or multigroup data libraries, and it is further boosted by parallel processing to speed up simulations. A number of benchmark problems are studied at the end to evaluate the performance of the proposed approach in various situations.

Details

Language :
English
ISSN :
00295639
Volume :
196
Issue :
4
Database :
Supplemental Index
Journal :
Nuclear Science and Engineering
Publication Type :
Periodical
Accession number :
ejs59066229
Full Text :
https://doi.org/10.1080/00295639.2021.1989932