D01CFD / high-fidelity T/H (often coupled)
D02Consequence analysis / health physics
D03Fuel performance / materials
D04Fuel-cycle/depletion/data processing
D05Multiphysics / coupling / toolchain
D06Multiphysics / coupling / workflow
D07Radiation transport / Deterministic
D08Radiation transport / Monte Carlo
D09Reactor physics / core / neutronics
D10Scientific computing / pre-post / libraries
D11System safety & thermal-hydraulics
D12UQ/SA / PRA (enabling analysis)
D13Workflow management (HPC / pipelines)