AP1000 10-inch SBLOCA Simulation and Analysis Using RHYS-ASYST

This video presents an AP1000 10-inch small-break LOCA simulation and analysis using RHYS-ASYST. The video includes: AP1000 nodalization and model overview Accident location and transient setup Steady-state calculation and verification Transient simulation Qualitative two-phase flow visualization Quantitative analysis of system pressure, break flow, passive safety injection, ADS operation, IRWST gravity injection, PRHR heat removal, core cooling response, and IRWST internal behavior RHYS and ASYST continue to be developed and improved through ongoing technical assessment and user feedback.