[2G01-07] Severe Accident

[2G03] Study on Spreading Behavior of Molten Core after Floor Collision with Molten Metal

*Tomomasa Ito¹, Yasunori Yamamoto¹, Nassim Sahboun¹, Shuichiro Miwa¹ (1. Hokkaido Univ.)

Keywords:Molten Core, Severe Accident, Free-fall, Dimensionless Number, Floor Collision

In this study, we performed molten metal drop experiments using Sn and Cu to obtain fundamental data and its uncertainties that can be used to verify the analysis model and to evaluate the effect of scaling parameters on the spreading and deposition behaviors. Strong correlations were obtained between deposition behaviors and Re numbers, and between spreading behaviors and Pe numbers. We constructed a correlation equation using our experimental data as a function of dimensionless numbers.