Review of spacer grid to rod fretting in pressurized water reactor
G Ricciardi, V Faucher, L Rossi, F François… - … Engineering and Design, 2024 - Elsevier
In spite of the low fuel failure rate in currently operating water cooled nuclear power reactors,
operations are increasingly demanding with higher burn-up, power increases, cycle lengths …
operations are increasingly demanding with higher burn-up, power increases, cycle lengths …
Reduced order modeling for coupled thermal-hydraulics and reactor physics problems
The development of a new generation of reactor presents several modelling challenges that
cannot be effectively addressed by traditional tools used for Light Water Reactors. Multi …
cannot be effectively addressed by traditional tools used for Light Water Reactors. Multi …
Invariant analysis of the Reynolds stress tensor for a nuclear fuel assembly with spacer grid and split type vanes
Invariant analysis of the Reynolds stress tensor anisotropy can give an accurate and deep
intuitive understanding of the turbulent structure of a turbulent flow. Lumley's triangle has …
intuitive understanding of the turbulent structure of a turbulent flow. Lumley's triangle has …
Large-scale large eddy simulation of nuclear reactor flows: Issues and perspectives
Numerical simulation has been an intrinsic part of nuclear engineering research since its
inception. In recent years a transition is occurring toward predictive, first-principle-based …
inception. In recent years a transition is occurring toward predictive, first-principle-based …
[HTML][HTML] Turbulent flow characteristics in an 84-pin rod bundle for typical and damaged spacer grids
Hexagonal rod bundles arranged in a tightly packed triangular lattice are extensively used
for heat transfer and energy generation applications. Staggered spacer grids are used to …
for heat transfer and energy generation applications. Staggered spacer grids are used to …
Wall resolved large eddy simulation of reactor core flows with the spectral element method
Numerical simulation is an intrinsic part of nuclear engineering research supporting the
design of nuclear power plants. With the advent of Petascale computing (ie, computers …
design of nuclear power plants. With the advent of Petascale computing (ie, computers …
Rod bundle vortex networks, gap vortex streets, and gap instability: A nomenclature and some comments on available methodologies
S Tavoularis - Nuclear engineering and design, 2011 - Elsevier
This note introduces the following terms, which apply to large-scale, vortical, coherent
structures, appearing in flows through tightly packed rod bundles and other channels that …
structures, appearing in flows through tightly packed rod bundles and other channels that …
Comparison of a Modal Method and a Proper Orthogonal Decomposition approach for multi-group time-dependent reactor spatial kinetics
In this paper, two modelling approaches based on a Modal Method (MM) and on the Proper
Orthogonal Decomposition (POD) technique, for developing a control-oriented model of …
Orthogonal Decomposition (POD) technique, for developing a control-oriented model of …
A novel domain overlapping strategy for the multiscale coupling of CFD with 1D system codes with applications to transient flows
TP Grunloh, A Manera - Annals of Nuclear Energy, 2016 - Elsevier
A novel multiscale coupling methodology based on a domain overlapping approach has
been developed to couple a computational fluid dynamics code with a best-estimate thermal …
been developed to couple a computational fluid dynamics code with a best-estimate thermal …
Effect of stochastic deformation on the vibration characteristics of a tube bundle in axial flow
H Dolfen, S Vandewalle, J Degroote - Nuclear Engineering and Design, 2023 - Elsevier
Abstract Design evaluation of nuclear components using numerical methods has typically
been focused on nominal geometries and conditions. In reality, the geometry of reactor …
been focused on nominal geometries and conditions. In reality, the geometry of reactor …