Data-enabled physics-informed machine learning for reduced-order modeling digital twin: application to nuclear reactor physics

H Gong, S Cheng, Z Chen, Q Li - Nuclear Science and Engineering, 2022 - Taylor & Francis
This paper proposes an approach that combines reduced-order models with machine
learning in order to create physics-informed digital twins to predict high-dimensional output …

Generalized Empirical Interpolation Method With H 1 Regularization: Application to Nuclear Reactor Physics

H Gong, Z Chen, Q Li - Frontiers in Energy Research, 2022 - frontiersin.org
The generalized empirical interpolation method (GEIM) can be used to estimate the physical
field by combining observation data acquired from the physical system itself and a reduced …

[HTML][HTML] Data-driven model order reduction for sensor positioning and indirect reconstruction with noisy data: Application to a Circulating Fuel Reactor

A Cammi, S Riva, C Introini, L Loi… - Nuclear Engineering and …, 2024 - Elsevier
Sensor positioning and real-time estimation of non-observable fields is an open question in
the nuclear sector, especially for advanced nuclear reactors. In Circulating Fuel Reactors …

Sensor placement in nuclear reactors based on the generalized empirical interpolation method

JP Argaud, B Bouriquet, F De Caso, H Gong… - Journal of …, 2018 - Elsevier
In this paper, we apply the so-called generalized empirical interpolation method (GEIM) to
address the problem of sensor placement in nuclear reactors. This task is challenging due to …

Optimal and fast field reconstruction with reduced basis and limited observations: Application to reactor core online monitoring

H Gong, Z Chen, Y Maday, Q Li - Nuclear Engineering and Design, 2021 - Elsevier
The fast reconstruction of neutronic field in a nuclear core using reduced modeling and
limited observations has attracted considerable attention. In particular, four design …

[HTML][HTML] Multi-physics model bias correction with data-driven reduced order techniques: Application to nuclear case studies

S Riva, C Introini, A Cammi - Applied Mathematical Modelling, 2024 - Elsevier
Due to the multiple physics involved and their mutual and complex interactions, nuclear
engineers and researchers are constantly working on develo** highly accurate Multi …

Non-intrusive system state reconstruction from indirect measurements: A novel approach based on Hybrid Data Assimilation methods

C Introini, S Riva, S Lorenzi, S Cavalleri… - Annals of Nuclear …, 2023 - Elsevier
The problem of estimating in real-time the state of a system by combining experimental data
and models has been extensively addressed in literature. In particular, there have been a lot …

Reactor power distribution detection and estimation via a stabilized gappy proper orthogonal decomposition method

H Gong, Y Yu, Q Li - Nuclear Engineering and Design, 2020 - Elsevier
The proper orthogonal decomposition (POD) method has been applied in nuclear reactor
physics to extract features of dominant flux or power. In particular, the gappy POD method is …

Stabilization of (G) EIM in presence of measurement noise: application to nuclear reactor physics

JP Argaud, B Bouriquet, H Gong, Y Maday… - … June 27-July 1, 2016, Rio …, 2017 - Springer
Abstract The Empirical Interpolation Method (EIM) and its generalized version (GEIM) can be
used to approximate a physical system by combining data measured from the system itself …

An adjoint proper orthogonal decomposition method for a neutronics reduced order model

S Lorenzi - Annals of Nuclear Energy, 2018 - Elsevier
This paper deals with the use of Reduced Order Methods for neutronics modelling. This
approach is used whether both accuracy and computational efficiency are required. A very …