@article{0f79f57ac43845f88d56370fb78a8580,
title = "Investigation on corium spreading over ceramic and concrete substrates in VULCANO VE-U7 experiment with moving particle semi-implicit method",
abstract = "The potential reasons for the corium spreading difference over inert ceramic and reactive concrete channels of VULCANO VE-U7 experiment are investigated using Moving Particle Semi-implicit (MPS) method. A new thermal contact resistance model has been developed for MPS so that influence of the subscale heat transfer between the melt/crust and the substrate on spreading can be considered. The results indicate that the spreading difference is not much influenced by heat loss of the melt to different substrates, but more likely due to gas bubbles in the concrete channel. The most likely responsible gas bubble effect could not be well identified with the single channel analysis, because it could not consider the inflow mass interactions at the stabilization pool. The double-channel analysis with such consideration indicated enhancement of the effective thermal conductivity of the melt as the key influence of the gas bubbles that led to the difference.",
keywords = "Corium spreading, Gas bubble effect, MPS method, Severe accident, Thermal contact resistance, VULCANO VE-U7",
author = "Jubaidah and Guangtao Duan and Akifumi Yamaji and Christophe Journeau and Laurence Buffe and Haquet, {Jean Francois}",
note = "Funding Information: The authors gratefully acknowledge that part of this work was supported by the ?PHC Sakura? program (project number: 40948UH), implemented by the French Ministry of Foreign Affairs, the French Ministry of Higher Education and Research and the Japan Society for Promotion of Science. Part of this study is the result of Deepening Understanding of Ex-Vessel Corium Behavior by Multi-Physics Modeling carried out under the Center of World Intelligence Project for Nuclear S&T and Human Resource Development by the Ministry of Education, Culture, Sports, Science and Technology of Japan. Part of this work was also conducted under ?Understanding Mechanisms of Severe Accidents and Improving Safety of Nuclear Reactors by Computer Science? of Institute for Advanced Theoretical and Experimental Physics and Waseda Research Institute for Science and Engineering and also supported by Institute for Advanced Theoretical and Experimental Physics, Waseda University. This work is supported by Universitas Negeri Medan (UNIMED), and financially support by Ministry of Research, Technology and Higher Education of the Republic of Indonesia (KEMRISTEKDIKTI) and Indonesia Endowment Fund for Education (LPDP) [grant number: PRJ-6901/LPDP.3/2016]. Funding Information: The authors gratefully acknowledge that part of this work was supported by the “PHC Sakura” program (project number: 40948UH), implemented by the French Ministry of Foreign Affairs, the French Ministry of Higher Education and Research and the Japan Society for Promotion of Science. Part of this study is the result of Deepening Understanding of Ex-Vessel Corium Behavior by Multi-Physics Modeling carried out under the Center of World Intelligence Project for Nuclear S&T and Human Resource Development by the Ministry of Education, Culture, Sports, Science and Technology of Japan. Part of this work was also conducted under “Understanding Mechanisms of Severe Accidents and Improving Safety of Nuclear Reactors by Computer Science” of Institute for Advanced Theoretical and Experimental Physics and Waseda Research Institute for Science and Engineering and also supported by Institute for Advanced Theoretical and Experimental Physics, Waseda University. This work is supported by Universitas Negeri Medan (UNIMED), and financially support by Ministry of Research, Technology and Higher Education of the Republic of Indonesia (KEMRISTEKDIKTI) and Indonesia Endowment Fund for Education (LPDP) [grant number: PRJ-6901/LPDP.3/2016]. Appendix A Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",
year = "2020",
month = jun,
day = "15",
doi = "10.1016/j.anucene.2019.107266",
language = "English",
volume = "141",
journal = "Annals of Nuclear Energy",
issn = "0306-4549",
publisher = "Elsevier Limited",
}