Experimental simulation of fragmentation and stratification of core debris on the core catcher of a fast breeder reactor

Flow transition criteria of a liquid jet into a liquid pool

“…Instead, a scoping study of the fundamental process is an effective approach to understanding the actual situation. To date, there have been many experimental efforts under various conditions that have been aimed at clarifying the melt-coolant interaction, including UO2 into sodium (Magallon et al, 1992;Schins and Gunnerson, 1986), molten oxide into sodium (Kaiser et al, 1998;Matsuba et al, 2015;Schins and Gunnerson, 1986), molten metal into sodium (Kaiser et al, 1998;Matsuba et al, 2016a;Nishimura et al, 2010;Schins and Gunnerson, 1986), corium into water (Huhtiniemi and Magallon, 2001;Magallon, 2006;Magallon and Huhtiniemi, 2001;Spencer et al, 1994), molten oxide into water (Kaiser et al, 2001;Karbojian et al, 2009;Kudinov et al, 2013;Manickam et al, 2014Manickam et al, , 2016Moriyama et al, 2005) and molten metal into water (Abe et al, 2006;Bang et al, 2003;Bang and Kim, 2014;Bürger et al, 1995;Cho et al, 1991;Dinh et al, 1999;Iwasawa et al, 2015bIwasawa et al, , 2015cKondo et al, 1995;Mathai et al, 2015;Matsuo et al, 2008;Pillai et al, 2016;Spencer et al, 1986;Wei et al, 2016). The aim of all these experiments and tests was not limited to understanding a CDA in an SFR; a severe accident in a light-water reactor was also included as a possible scenario.…”