Pronghorn: A multidimensional coarse-mesh application for advanced reactor thermal hydraulics
This paper presents an overview of Pronghorn, a multiscale thermal-hydraulic (T/H)
application developed by Idaho National Laboratory and the University of California …
application developed by Idaho National Laboratory and the University of California …
Discrete element simulation of Pebble Bed Reactors on graphics processing units
Prediction of pebble positions in a Pebble Bed Reactor (PBR) is necessary for both reactor
physics and thermal hydraulics simulations as the arrangement of pebbles has a significant …
physics and thermal hydraulics simulations as the arrangement of pebbles has a significant …
A review of multiphysics tools and methods to evaluate high temperature pebble bed reactors
EM Duchnowski, NR Brown - Progress in Nuclear Energy, 2024 - Elsevier
The Generation IV high temperature pebble bed reactor has garnered interest over the years
as a viable solution for reducing overall carbon emissions. The potential for enhanced …
as a viable solution for reducing overall carbon emissions. The potential for enhanced …
A workflow leveraging MOOSE transient multiphysics simulations to evaluate the impact of thermophysical property uncertainties on molten-salt reactors
A new approach is proposed to evaluate the safety of molten-salt reactors (MSRs), using
advanced modeling and simulation (M&S) tools. This approach augments the Monitoring …
advanced modeling and simulation (M&S) tools. This approach augments the Monitoring …
Multiscale thermal-hydraulic modeling of the pebble bed fluoride-salt-cooled high-temperature reactor
The complex core geometry of Pebble Bed Reactors (PBRs) necessitates multiscale
techniques for fast-turnaround design and analysis. This paper describes the multiscale …
techniques for fast-turnaround design and analysis. This paper describes the multiscale …
Generation of localized reactor point kinetics parameters using coupled neutronic and thermal fluid models for pebble-bed reactor transient analysis
The systems analysis of anticipated operating occurrences and design basis accidents for
pebble-bed reactor systems requires knowledge of neutron point kinetics equations (PKE) …
pebble-bed reactor systems requires knowledge of neutron point kinetics equations (PKE) …
Sensitivity analysis, surrogate modeling, and optimization of pebble-bed reactors considering normal and accident conditions
This research provides a valuable tool that streamlines the reactor design optimization
process while significantly increasing its accuracy. This study creates a robust framework by …
process while significantly increasing its accuracy. This study creates a robust framework by …
Improved natural convection heat transfer correlations for reactor cavity cooling systems of high-temperature gas-cooled reactors: From computational fluid dynamics …
The reactor cavity cooling system (RCCS) is a common reactor safety system in high-
temperature gas-cooled Reactors (HTGR) that removes heat from the reactor pressure …
temperature gas-cooled Reactors (HTGR) that removes heat from the reactor pressure …
A multi-level nonlinear elimination-based JFNK method for multi-scale multi-physics coupling problem in pebble-bed HTR
Y Wu, B Liu, H Zhang, J Guo, F Li - Annals of Nuclear Energy, 2022 - Elsevier
In the pebble-bed high-temperature gas-cooled reactor, various physical phenomena occur
at different spatial scales and are coupled together tightly in a nonlinear manner. More …
at different spatial scales and are coupled together tightly in a nonlinear manner. More …
Initial Demonstration of New Griffin Technologies for Simulating the Running-In Phase of Pebble Bed Reactors
Griffin is a reactor multiphysics modeling application based on MOOSE (Multiphysics Object-
Oriented Simulation Environment) and specifically targeting transient modeling of advanced …
Oriented Simulation Environment) and specifically targeting transient modeling of advanced …