Improved AQUA-SF sodium combustion model based on large-scale sodium spray test benchmark analysis

Sonehara, Masateru ; Okano, Yasushi; Uchibori, Akihiro ; Oki, Hiroshi*

In the development of sodium-cooled fast reactors, it is important to understand the combustion behavior in sodium leak accidents. In this study, the multidimensional thermal fluid analysis code AQUA-SF was applied to the numerical simulation of the large-scale combustion test (so-called the T3 test) with accounting characteristic event progressions (temporary stop of combustion, droplet splash on the floor).