[2A01-04] Thermal Hydraulics of Fast Reactors

[2A01] Particle-based simulation on heat transfer behavior between molten pool and duct wall in EAGLE ID1 and ID2 in-pile tests

*Ting Zhang¹, Koji Morita¹, Xiaoxing Liu¹, Wei Liu¹, Kenji Kamiyama² (1. Kyushu Univ., 2. JAEA)

Keywords:Sodium-cooled fast reactor, Core disruptive accidents, Particle-based simulation, Molten pool heat transfer

The EAGLE ID1 and ID2 in-pile tests suggest that the inner duct wall failure could be initiated by high heat flux from molten pool in FAIDUS. In this study, the ID1 and ID2 tests, which were performed under different power conditions, were simulated numerically using the finite volume particle (FVP) method to study the thermal-hydraulic mechanisms underlying the heat transfer process.