Sandia code accuracy quantification and its application to TRAC-PF1/MOD1 assessment

Le résumé fourni par la source

Code assessment is performed to obtain a judgment of the accuracy and validity of any given code over its range of applicability. To achieve this, the codes are exercised against a matrix of experiments, resulting in comparisons between code predictions and measured data. Thus far, conclusions on code accuracy drawn from previous independent assessment studies have appeared to be mostly phenomenological and/or qualitative. There is an increasing emphasis within the NRC code assessment effort to formulate more coherent, quantitative conclusions on the capabilities and accuracies of the codes. This can be done by using statistically-based methods to evaluate the overall accuracy of the codes with respect to particular key phenomena, based on the same code analyses of individual experiments. One possibility for a code accuracy quantification methodology is presented in this paper.

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