[1E08-12] Severe Accident 2

[1E12] Development and comparison of MPH-LES particle method for simulating solidification behavior of molten metal falling into shallow water

*Ryo Yokoyama¹, Masahiro Kondo², Shunichi Suzuki¹, Koji Okamoto¹ (1. Univ. Tokyo, 2. AIST)

Keywords:Severe accident, Fuel debris, Particle method , Turbulence, Solidification

For predicting the fuel debris distribution in Fukushima Daiichi Nuclear Power Plants (1F NPPs), it is necessary to figure out the solidification behavior of the molten metal in water. In this paper, the MPH-LES method is introduced and the results were compared with the experiments. The solidification and accumulation behavior of the metal seen in the experiments were capable to be reproduced by introducing the turbulence model.