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Research contents

3.4 Severe phenomenon evaluation

3.4.1 Analysis for phenomena of Fukushima accident

3.4.2 Deformation and phase transition of the structure materials in the nuclear reactor

3.4.3 Analysis of migration behavior of melting debris in the nuclear reactor

3.4.4 Jet break behavior of melting materials

3.4.5 Analysis of detailed temperature distribution in the nuclear reactor

3.4.6 Experiment for heat flow in the debris

3.4.7 Experiment for heat transfer of seawater

3.4.8 Test measurement of void fraction distribution in fuel assembly