[2K11-14] Fluid and Structural Analysis

[2K11] Establishment of V&V Procedure of Numerical Estimation Method for Thermal-Hydraulic Phenomena in Sodium-cooled Fast Reactor

(2) Quantification of Model Uncertainty in Numerical Simulation of Fundamental Validation

*MASAAKI TANAKA¹ (1. Japan Atomic Energy Agency)

Keywords:Verification and Validation, Grid Convergence Index, Area Validation Metrics, Uncertainty Quantification, Thermal-hydraulic Simulation

In a proposed framework for verification and validation plus uncertainty quantification (VVUQ) and prediction called V2UP, practical methodologies for the VVUQ has been investigated. Model uncertainty in the numerical simulation as fundamental validation for development of thermal fatigue estimation method was successfully quantified using the modified GCI (SLS-GCI) and the Area Validation Metrics methods.