CFD simulation benchmark on thermal-hydraulic behaviour of light metal layer

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46356088%3A_____%2F23%3AN0000024" target="_blank" >RIV/46356088:_____/23:N0000024 - isvavai.cz</a>

Result on the web

<a href="https://cea.hal.science/cea-04026763/file/ICONE30_paperV1_accepte.pdf" target="_blank" >https://cea.hal.science/cea-04026763/file/ICONE30_paperV1_accepte.pdf</a>

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

CFD simulation benchmark on thermal-hydraulic behaviour of light metal layer

Original language description

In the framework of the IAEA Coordinated Research Project on In-Vessel Melt Retention, a benchmark of CFD simulations, devoted to thermal-hydraulic behavior of the light metal layer involves several research organizations: KTH of Sweden, SSTC NRS of Ukraine, ÚJV Řež of Czech Republic and CEA of France. This work aims at better simulating the focusing effect phenomenon leading to a heat flux peak along the height of the light metal layer, which is formed above the oxide layer in a stratified corium pool configuration during a PWR severe accident. This is a known safety issue compromising the reactor vessel integrity. The first benchmark step provides a solid foundation to the CFD schemes (physical models, meshes) by comparing the results of CFD simulations with thermal-hydraulic experimental data obtained using water as simulating fluid in a representative and quite laminar configuration. Then a similar but highly turbulent case, of higher height, is considered for more complex validation of the numerical simulation approach. Results with different turbulent models are compared against experimental data. On the strength of this encouraging work, a simulation of the same height configuration but considering steel fluid under severe accident conditions is foreseen at the final stage of this benchmark. © 2023 by JSME.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20305 - Nuclear related engineering; (nuclear physics to be 1.3);

Project

—

Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings of the 2023 30th International Conference on Nuclear Engineering ICONE30 May 21-26, 2023, Kyoto, Japan

ISBN

978-488898256-6

ISSN

—

e-ISSN

—

Number of pages

11

Pages from-to

1-11

Publisher name

American Society of Mechanical Engineers (ASME)

Place of publication

—

Event location

Kyoto, Japan

Event date

May 21, 2023

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

—