Validation of the Direct Transport Code Shark with the Jrr-3m Macro Benchmark

The JRR-3M reactor is a water-cooled plate-type reactor for research. A macro benchmark based on the JRR-3M reactor is established with the Monte-Carlo code RMC and deterministic direct transport code SHARK with accurate and explicit geometry modeling. A series of cases from 2D lattice to 3D whole-core are adopted for the validation of SHARK. In the validation, sensitivity analyses are conducted with the 2D lattice case and applied in the 3D whole-core calculation. Numerical results indicate the good accuracy of SHARK for the plate-type JRR-3M macro benchmark