[1G13-16] Accident Analysis

[1G13] Study on quench behavior at a core-disruptive accident for a fast breeder reactor

(33)Numerical simulation of jet breakup behavior by a lattice Boltzmann method

*Shimpei Saito¹, Yutaka Abe¹, Akiko Kaneko¹, Hideki Nariai¹ (1. University of Tsukuba)

Keywords:Sodium-cooled fast reactor, Core-disruptive accident, Jet breakup, Lattice Boltzmann method

高速増殖炉の炉心溶融事故時には，ジェット状に放出された溶融燃料挙動の把握が重要となる．本報では，中央モーメントの概念に基づき二相系格子ボルツマン法を高密度比かつ高Reynolds数条件に対して拡張し，既存実験結果の再現を試みた．