A comprehensive survey of inverse uncertainty quantification of physical model parameters in nuclear system thermal–hydraulics codes

@article{Wu2021ACS,
  title={A comprehensive survey of inverse uncertainty quantification of physical model parameters in nuclear system thermal–hydraulics codes},
  author={Xu Wu and Ziyu Xie and Farah Alsafadi and Tomasz Kozlowski},
  journal={Nuclear Engineering and Design},
  year={2021}
}
Uncertainty Quantification (UQ) is an essential step in computational model validation because assessment of the model accuracy requires a concrete, quantifiable measure of uncertainty in the model predictions. The concept of UQ in the nuclear community generally means forward UQ (FUQ), in which the information flow is from the inputs to the outputs. Inverse UQ (IUQ), in which the information flow is from the model outputs and experimental data to the inputs, is an equally important component… 
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Digital Twin Concepts with Uncertainty for Nuclear Power Applications
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For nuclear power applications, DT development should rely first on mechanistic model-based methods to leverage the extensive experience and understanding of these systems, and model-free techniques can then be adopted to selectively, and correctively, augment limitations in the model- based approaches.

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