Digital twin concepts with uncertainty for nuclear power applications

B Kochunas, X Huan - Energies, 2021 - mdpi.com
Digital Twins (DTs) are receiving considerable attention from multiple disciplines. Much of
the literature at this time is dedicated to the conceptualization of digital twins, and associated …

Passive safety systems analysis: A novel approach for inverse uncertainty quantification based on Stacked Sparse Autoencoders and Kriging metamodeling

G Roma, F Antonello, F Di Maio, N Pedroni… - Progress in Nuclear …, 2022 - Elsevier
In passive safety system analysis, it is important to provide the uncertainty quantification of
the Thermal-Hydraulic (TH) code output (eg, the amount of energy exchanged by the …

Scalable inverse uncertainty quantification by hierarchical bayesian modeling and variational inference

C Wang, X Wu, Z Xie, T Kozlowski - Energies, 2023 - mdpi.com
Inverse Uncertainty Quantification (IUQ) has gained increasing attention in the field of
nuclear engineering, especially nuclear thermal-hydraulics (TH), where it serves as an …

Dimensional decomposition-aided metamodels for uncertainty quantification and optimization in engineering: A review

H Zhao, C Fu, Y Zhang, W Zhu, K Lu… - Computer Methods in …, 2024 - Elsevier
Quantitative analysis and optimal design under uncertainty are active research areas in
modern engineering structures and systems. A metamodel, as an effective mathematical …

Leveraging Industry 4.0: Deep Learning, Surrogate Model, and Transfer Learning with Uncertainty Quantification Incorporated into Digital Twin for Nuclear System

M Rahman, A Khan, S Anowar, M Al-Imran… - Handbook of Smart …, 2022 - Springer
Industry 4.0 targets the conversion of the traditional industries into intelligent ones through
technological revolution. This revolution is only possible through innovation, optimization …

SAM-ML: Integrating data-driven closure with nuclear system code SAM for improved modeling capability

Y Liu, R Hu, L Zou, D Nunez - Nuclear Engineering and Design, 2022 - Elsevier
Advanced reactors often involve complicated thermal-fluid (TF) phenomena. Modeling such
phenomena with the traditional one-dimensional (1-D) system code is a challenging task …

Functional PCA and deep neural networks-based Bayesian inverse uncertainty quantification with transient experimental data

Z Xie, M Yaseen, X Wu - Computer Methods in Applied Mechanics and …, 2024 - Elsevier
This work focuses on developing an inverse uncertainty quantification (IUQ) process for time-
dependent responses, using dimensionality reduction by functional principal component …

[HTML][HTML] Towards the uncertainty quantification of semi-empirical formulas applied to the added resistance of ships in waves of arbitrary heading

M Mittendorf, UD Nielsen, HB Bingham, S Liu - Ocean Engineering, 2022 - Elsevier
The present paper examines a semi-empirical framework for the estimation of added
resistance in arbitrary wave heading under consideration of uncertainty quantification. In this …

A comprehensive Bayesian framework for the development, validation and uncertainty quantification of thermal-hydraulic models

R Cocci, G Damblin, A Ghione, L Sargentini… - Annals of Nuclear …, 2022 - Elsevier
The development, validation and uncertainty quantification of closure laws used into thermal–
hydraulic system codes is a key issue before applying the BEPU (Best Estimate Plus …

[HTML][HTML] Global sensitivity analysis for segmented inverse uncertainty quantification in the safety analysis of nuclear power plants

F Di Maio, TM Coscia, N Pedroni, A Bersano… - Annals of Nuclear …, 2024 - Elsevier
Abstract Within the Best Estimate Plus Uncertainty framework for the safety analysis of
Nuclear Power Plants, the quantification of the uncertainties affecting the Thermal …