Development and Preliminary Verification of MCAT Platform for Fuel Element Multi-physics Coupling Analysis

被引：0

作者：

Qi F. ^{[1
]}

Liu Z. ^{[1
]}

Yin C. ^{[1
]}

Luo J. ^{[1
]}

Liu Y. ^{[1
]}

Qian L. ^{[1
]}

Zhou Y. ^{[1
]}

Wang H. ^{[1
]}

Chen P. ^{[1
]}

Li Q. ^{[1
]}

机构：

[1] Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu

来源：

Hedongli Gongcheng/Nuclear Power Engineering | 2024年 / 45卷 / 03期

关键词：

Fuel performance analysis; Multi-physics coupling; Neutronics; Picard iteration; Thermal-hydraulics;

D O I：

10.13832/j.jnpe.2024.03.0028

中图分类号：

学科分类号：

摘要：

In order to further improve the prediction accuracy of fuel performance and expand the application scope of fuel analysis tools, and based on the commercial finite element analysis code COMSOL, the system safety analysis code ARSAC and the Monte Carlo burnup calculation code RMC, a multi-physical field coupling analysis platform MCAT for typical rod fuel elements is established, which realizes the bidirectional coupling of fuel module, thermal hydraulic module and neutron physics module. The concept of modular designe is adopted for the coupling platform, the intermediate data interface is used to manage the coupling parameters and define the "boundary" of each module, and the updating and feedback of the coupling parameters are realized with the input/output text files of each module, thus avoiding the source code level modification of the existing codes. Asymmetric Picard iterative algorithm is used to realize bidirectional coupling between modules, and the physical and thermal modules are regarded as black box codes. In the process of solving fuel thermodynamics, RMC and ARSAC are called in turn to perform calculations and exchange data, and iteration is repeated until convergence. In this paper, MCAT is preliminarily verified from the aspects of module, interface and comprehensive prediction results. The results show that MCAT can accurately predict the distribution of parameters such as power, temperature, structural deformation and coolant state in fuel elements, which proves the correctness of MCAT platform in module development, coupling process construction and coding implementation. © 2024 Atomic Energy Press. All rights reserved.

引用

页码：28 / 36

页数：8

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