A comparative analysis of detailed and reduced CFD approaches to model wire-wrapped fuel bundles for LMFBRs applications

被引：1

作者：

Halim, O. ^{[1
]}

Galleni, F. ^{[1
]}

Forgione, N. ^{[1
]}

Di Piazza, I. ^{[2
]}

Pucciarelli, A. ^{[1
]}

机构：

[1] Univ Pisa, Dipartimento Ingn Civile & Ind, Largo Lucio Lazzarino 2, I-56126 Pisa, Italy

[2] ENEA, CR Brasimone, I-40032 Camugnano, BO, Italy

来源：

ANNALS OF NUCLEAR ENERGY | 2025年 / 211卷

关键词：

NACIE-UP; LBE; CFD; Porous Media; ROD BUNDLES; ASSEMBLIES; VALIDATION;

D O I：

10.1016/j.anucene.2024.110937

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：

The paper investigates the capabilities of different CFD modelling approaches in reproducing operating conditions relevant for Liquid Metal Fast Breeder Reactors technologies. The selected benchmark is the NACIE-UP facility wire-wrapped fuel bundle using Lead-Bismuth Eutectic (LBE) as coolant: the predictions are compared to the experimental data collected for several operating conditions considered in the frame of two distinct experimental campaigns. Four different modelling approaches have been adopted in this work to model the NACIE-UP Fuel Pin Simulator: Bare, Detailed, Solid-Wire and the Porous-Wire Rod Bundle model. A model-tomodel comparison is performed to understand the benefits, limitations, and accuracy of using different modelling approaches for representing wrapped wires fuel bundles. Furthermore, integrating NACIE-UP benchmark experimental data into the comparative analysis reinforce the validation process of the adopted modelling approaches.

引用

页数：19

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ANNALS OF NUCLEAR ENERGY, 2024, 196

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