To implement full risk-informed multiphysics best estimate plus uncertainty analysis capability in RELAP5-3D to support more-detailed physics-based analyses and develop an human-reliability analysis (HRA) control module in RELAP5-3D for coupling with HUNTER.
Researchers will enhance features of RELAP5-3D required for support of other Light Water Reactor Sustainability Program projects, including this capability, a dynamic HRA control module, and the improved coupling with RAVEN required to perform automated workflow for dynamic probabilistic risk assessment and HRA.
RELAP5-3D simulation view screenshot. The capability to perform detailed physics-based modeling such as thermal hydraulics simulation is important to minimize conservatism typical for traditional models. This helps to improve overall risk metrics.