Development of common user data model for APOLLO3 and MARBLE and application to benchmark problems

Yokoyama, Kenji   

A Common User Data Model, CUDM, has been developed for the purpose of benchmark calculations between APOLLO3 and MARBLE code systems. The CUDM was designed for core calculation benchmark problems with 3-dimensional Cartesian, 3-D XYZ, geometry. Based on the CUDM, a prototype system for a benchmark calculation, CUDM-benchmark, was also developed. In order to evaluate pertinence of CUDM, the CUDM-benchmark was applied to benchmark problems proposed by T. Takeda, G. Chiba and I. Zmijarevic. In addition, a detailed benchmark calculation for Chiba benchmark was performed. In this application, it was found that the results by IDT and SNT solvers agreed well with the reference results by Monte-Carlo code. In addition, model effects such as quadrature set effect, order effect and mesh size effect were systematically evaluated.