Analysis of the QUENCH-12 bundle experiment with the ATHLET-CD2.2A code (KIT Scientific Reports ; 7622)

Simulation of the QUENCH-12 experiment (reflood of a VVER test bundle) was performed by means of the computer code ATHLET-CD. The calculated results were compared with the ones measured during the experiment. Sensitivity analysis was performed for such parameters as gas flow rates, electrical parameters, breakaway onset etc. Influence of different nodalization schemes on the simulation results was examined.