NUPEC BWR Full-size Fine-mesh Bundle Test BFBT Benchmark - Volume III: Results of Phase I on Void Distribution

NEA/NSC/R(2020)6

In the past decade, a large amount of effort has been made towards the direct simulation of the boiling transition (BT) for Boiling Water Reactor (BWR) fuel bundles. This international benchmark, based on the Nuclear Power Engineering Corporation (NUPEC) database, encourages advancement in this un-investigated field of two-phase flow theory with high relevance to the evaluation of nuclear reactor safety margins.

This volume focuses on comparing how well simulations can predict void distribution measurements.