Validation of a computational model for the evaluation of fuel-coolant interaction under severe accidental condition in fast breeder reactors

摘要

A computational model for fuel-coolant interaction has been validated through calculations for a series of THINA experiments. By the experiments, it was intended to simulate a comparatively massive injection of molten core materials into sodium pool under a core disruptive accidental condition assumed for fast breeder reactors. The calculations by the SIMMER-II code showed that the current models for the fuel-coolant interaction (FCI) had the capability to well reproduce the experimental results.