Ikaros3D: a real-time 3D fine spatial mesh kinetics simulator using POD

Toward the development of digital triplets for more effective reactor physics education, the present study develops a real-time 3D fine spatial mesh kinetics simulator based on the proper orthogonal decomposition (POD). The present simulator, Ikaros3D, is specifically designed for a simplified coupled core model using the pre-tabulated compressed coefficient matrices for the POD-based kinetics calculation. It enables us to accurately calculate the time variation of flux distribution in real-time as well as actual experiments and promotes students’ better understanding of the spatial dependence of dynamic reactivity considering the positions of the neutron detectors.