DEVELOPMENT OF MPS METHOD FOR ANALYSING CONVECTION AND SOLIDIFICATION OF MULTI-COMPONENT CORIUM IN SEVERE ACCIDENT OF A LIGHT WATER REACTOR

Takanari Fukuda; Akifumi Yamaji; Xin Li; Jean François Haquet; Anne Boulin

DEVELOPMENT OF MPS METHOD FOR ANALYSING CONVECTION AND SOLIDIFICATION OF MULTI-COMPONENT CORIUM IN SEVERE ACCIDENT OF A LIGHT WATER REACTOR

Takanari Fukuda^*, Akifumi Yamaji, Xin Li, Jean François Haquet, Anne Boulin

^*Corresponding author for this work

Research output: Contribution to conference › Paper › peer-review

Abstract

In this study, a numerical approach for analyzing the internal status of Molten Core-Concrete Interaction (MCCI) has been developed based on Moving Particle Semi-implicit (MPS) method. Among the key required models, such as accurate viscosity interaction model for solidifying particles and interface tension models of different liquid phases, preliminary attempts have been made with new models. Namely, a simple mixing model and gas hosting particle model has been implemented to simulate the experiment with affordable calculation cost. The analysis results for VULCANO VF-U1 experiment have shown the possible mechanisms responsible for the characteristic distribution of the solidified metallic corium, which seemed to be highly dependent on the density of surrounding oxidic corium.

Original language	English
Publication status	Published - 2021
Event	7th International Conference on Particle-Based Methods: Fundamentals and Applications, PARTICLES 2021 - Hamburg, Germany Duration: 2001 Oct 4 → 2001 Oct 6

Conference

Conference	7th International Conference on Particle-Based Methods: Fundamentals and Applications, PARTICLES 2021
Country/Territory	Germany
City	Hamburg
Period	01/10/4 → 01/10/6

Keywords

Molten Core-Concrete Interaction (MCCI)
MPS
Multi-Phase Convective Flow
Severe Accident of a Nuclear Reactor
Solidification

ASJC Scopus subject areas

Condensed Matter Physics
Atomic and Molecular Physics, and Optics

Cite this

DEVELOPMENT OF MPS METHOD FOR ANALYSING CONVECTION AND SOLIDIFICATION OF MULTI-COMPONENT CORIUM IN SEVERE ACCIDENT OF A LIGHT WATER REACTOR. / Fukuda, Takanari; Yamaji, Akifumi; Li, Xin et al.
2021. Paper presented at 7th International Conference on Particle-Based Methods: Fundamentals and Applications, PARTICLES 2021, Hamburg, Germany.

Research output: Contribution to conference › Paper › peer-review

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title = "DEVELOPMENT OF MPS METHOD FOR ANALYSING CONVECTION AND SOLIDIFICATION OF MULTI-COMPONENT CORIUM IN SEVERE ACCIDENT OF A LIGHT WATER REACTOR",

abstract = "In this study, a numerical approach for analyzing the internal status of Molten Core-Concrete Interaction (MCCI) has been developed based on Moving Particle Semi-implicit (MPS) method. Among the key required models, such as accurate viscosity interaction model for solidifying particles and interface tension models of different liquid phases, preliminary attempts have been made with new models. Namely, a simple mixing model and gas hosting particle model has been implemented to simulate the experiment with affordable calculation cost. The analysis results for VULCANO VF-U1 experiment have shown the possible mechanisms responsible for the characteristic distribution of the solidified metallic corium, which seemed to be highly dependent on the density of surrounding oxidic corium.",

keywords = "Molten Core-Concrete Interaction (MCCI), MPS, Multi-Phase Convective Flow, Severe Accident of a Nuclear Reactor, Solidification",

author = "Takanari Fukuda and Akifumi Yamaji and Xin Li and Haquet, {Jean Fran{\c c}ois} and Anne Boulin",

note = "Funding Information: This work was supported by JSPS KAKENHI Grant Number JP21J12226. The MPS code of the present study was developed based on MMPS-HDDM code that was kindly provided by G. Duan and A. Yamaji. Publisher Copyright: {\textcopyright} PARTICLES 2021.; 7th International Conference on Particle-Based Methods: Fundamentals and Applications, PARTICLES 2021 ; Conference date: 04-10-2001 Through 06-10-2001",

year = "2021",

language = "English",

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AU - Fukuda, Takanari

AU - Yamaji, Akifumi

AU - Li, Xin

AU - Haquet, Jean François

AU - Boulin, Anne

N1 - Funding Information: This work was supported by JSPS KAKENHI Grant Number JP21J12226. The MPS code of the present study was developed based on MMPS-HDDM code that was kindly provided by G. Duan and A. Yamaji. Publisher Copyright: © PARTICLES 2021.

PY - 2021

Y1 - 2021

N2 - In this study, a numerical approach for analyzing the internal status of Molten Core-Concrete Interaction (MCCI) has been developed based on Moving Particle Semi-implicit (MPS) method. Among the key required models, such as accurate viscosity interaction model for solidifying particles and interface tension models of different liquid phases, preliminary attempts have been made with new models. Namely, a simple mixing model and gas hosting particle model has been implemented to simulate the experiment with affordable calculation cost. The analysis results for VULCANO VF-U1 experiment have shown the possible mechanisms responsible for the characteristic distribution of the solidified metallic corium, which seemed to be highly dependent on the density of surrounding oxidic corium.

AB - In this study, a numerical approach for analyzing the internal status of Molten Core-Concrete Interaction (MCCI) has been developed based on Moving Particle Semi-implicit (MPS) method. Among the key required models, such as accurate viscosity interaction model for solidifying particles and interface tension models of different liquid phases, preliminary attempts have been made with new models. Namely, a simple mixing model and gas hosting particle model has been implemented to simulate the experiment with affordable calculation cost. The analysis results for VULCANO VF-U1 experiment have shown the possible mechanisms responsible for the characteristic distribution of the solidified metallic corium, which seemed to be highly dependent on the density of surrounding oxidic corium.

KW - Molten Core-Concrete Interaction (MCCI)

KW - MPS

KW - Multi-Phase Convective Flow

KW - Severe Accident of a Nuclear Reactor

KW - Solidification

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M3 - Paper

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T2 - 7th International Conference on Particle-Based Methods: Fundamentals and Applications, PARTICLES 2021

Y2 - 4 October 2001 through 6 October 2001

ER -

DEVELOPMENT OF MPS METHOD FOR ANALYSING CONVECTION AND SOLIDIFICATION OF MULTI-COMPONENT CORIUM IN SEVERE ACCIDENT OF A LIGHT WATER REACTOR

Abstract

Conference

Keywords

ASJC Scopus subject areas

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