Applicability assessment of empirical correlations to the prediction of the distance for fragmentation of molten core materials in sodium

Matsuba, Kenichi  ; Isozaki, Mikio; Toyooka, Junichi  ; Kamiyama, Kenji  ; Zuev, V.*; Kolodeshnikov, A.*

In order to assess the fragmentation behavior of molten core material discharged into the lower sodium plenums during core disruptive accidents in sodium-cooled fast reactors, applicability of empirical correlations of the distance for fragmentation was investigated by comparing the values predicted using a correlation with the results obtained in the experiments where a simulated core material (molten alumina) was discharged into a sodium pool.