[2J01-04] Moleculer Dynamics & Machine Learning 1

[2J02] A Multiphase MPS Method with Fluid-Solid and Solid-Solid interaction models for Simulating Melt Pool Formation inside RPV

*Guangtao Duan¹, Akifumi Yamaji², Seiichi Koshizuka¹, Mikio Sakai¹ (1. Univ. of Tokyo, 2. Waseda Univ.)

Keywords:MPS method, Multiphase flow, Fluid-solid interaction, Phase change, Melt pool formati

A multiphase MPS method is developed by coupling the passively moving solid model for fluid-solid interaction and discrete element method for solid-solid collision to simulate the melt pool formation from solidified debris blocks. The influence of debris size, decay heat power and thermal contact resistance on melt pool formation is investigated.