Teview of quantitative accuracy assessments with fast Fourier transform based method (FFTBM)

摘要

In the past 10 years various methodologies were proposed to evaluate the uncertainty of BE code predictions. One common step to all methodologies is the use of experimental and plant data for the nodalization development and qualification. When thermal-hydraulic computer codes are used for simulation the questions raised are: 'How long improvements should be added to the model, how much simplification can be introduced and how to conduct an objective comparison?' the proposed fast Fourier transform based method (FFTBM) assists in answering these questions.