2020 Fall Meeting

Presentation information

Oral presentation

III. Fission Energy Engineering » 304-1 Thermal Hydraulics, Energy Conversion, Energy Transfer, Energy Storage

[2G01-07] Severe Accident

Thu. Sep 17, 2020 10:00 AM - 12:00 PM Room G (Zoom room 7)

Chair:Akifumi Yamaji(Waseda Univ.)

10:30 AM - 10:45 AM

[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.