[3F05-09] Melting Behavior

[3F05] Deepening Understanding of Ex-Vessel Corium Behavior by Multi-Physics Modeling

(1)Overview of the Research Plan

*Akifumi Yamaji¹, Masahiro Furuya², Yuji Ohishi³, Guangtao Duan¹ (1. Waseda University, 2. Central Research Institute of Electric Power Industry, 3. Osaka University)

Keywords:severe accident of a nuclear reactor, MPS method, ex-vessel corium behavior, corium spreading, MCCI

Simulations by MPS method, simulant spreading experiment, and UO₂ fundamental experiments are being conducted to deepn understanding of ex-vessel corium behavior in a postulated severe accident of a nuclear reactor.