World’s first attempt at whole nuclear plant seismic responses simulation

1. Highlights: • Grid-oriented • Partwise modeling • Parts assembly analysis • Part interaction allowed • Implicit dynamic FEM • Distributed visualization • Terabyte dataset • Real earthquake data (El Centro) t=0.58s t=2.90s t=4.06 (s) t=1.16s t=3.48s RPV IHX AHX PPWC GC SPWC Pipes Distributing parts to a Grid t=1.74s t=4.06s Atomic Energy Grid Infrastructure System t=2.32s t=4.64s CCSE R&D JAEA’s HPC Analytics Challenge From parts to the whole: a structured approach to tera-scale seismic response simulation The seismic response simulation of a huge structure, such as a nuclear power plant in its entirety, is very difficult because it involves the processing of extremely large datasets. JAEA developed a numerical simulation framework. The framework features two strategies, the “from parts to the whole” and hierarchical seismic simulation. We successfully applied our framework to the simulation of seismic responses of the major components of a nuclear power plant, involving 281 million meshes and 2.3 TB of result data. A tera-scale seismic response simulation of a nuclear power plant World’s first attempt at whole nuclear plant seismic responses simulation