URANIE: The CEA/DEN Uncertainty and Sensitivity platform

AbstractMathematical models, designated to simulate complex physical processes, are often used in scientific and engineering studies. In nuclear applications, these models, integrated in computation codes, are very complex and very high consuming CPU time. We present the “Uncertainty and Sensitivity” platform Uranie developed by the CEA to perform Uncertainty Quantification, Verification and Validation codes, and Sensitivity Analysis. Uranie was used in several nuclear studies like performance assessment with ANDRA, with neutronics and thermal-hydraulics codes, nuclear fuel thermal behaviour