Using the CFD-DEM method, numerical calculations are conducted to analyze the shape of
particle beds formed in two small-sized pre-flooded reactor cavities, aiming to understand …

This study evaluates how multi-phase fluids flow and how a large volume becomes a dryout
region in a volumetrically heat-generating conical porous bed formed in the pre-flooded …

This study evaluates how large a debris bed becomes dryout during ex-vessel cooling in a
pre-flooded reactor cavity if a postulated severe accident occurs. It is assumed that all …

To evaluate the effectiveness of the wet cavity strategy, the authors developed a stochastic
evaluation method that considers the uncertainties of the molten material conditions ejected …

This study proposes a method to analyze the concrete ablation depth during top water
flooding ex-vessel cooling by considering the phenomena occurring in dry and flooded …

This study assesses whether the integrity of a containment maintains during ex-vessel
cooling when a molten corium spreads on a dry reactor cavity floor and then it is cooled by …

This study assesses the integrity of OPR1000 nuclear power plant (NPP) containment during
top flooding ex-vessel cooling in the event of a postulated severe accident. Maintaining …

A method to calculate a two-phase flow and to find the dryout region in a volumetrically heat-
generating porous bed using computational fluid dynamics (CFD) is developed. It is …

Numerical calculations of the bed shape formed by particles descending into a water-filled
pool have been conducted using the CFD-DEM coupling Eulerian-Lagrangian method …