A review of recent study on the characteristics and applications of pebble flows in nuclear engineering
N Gui, S Jiang, X Yang, J Tu - Experimental and Computational …, 2022 - Springer
This paper reviews the recent three-year progress on the investigations of pebble bed flows
in nuclear engineering. Both the application of pebble beds in the fission reactors and the …
in nuclear engineering. Both the application of pebble beds in the fission reactors and the …
Numerical study of the effects of loading method on mixing of two kinds of pebbles in HTGR: A GPU-DEM simulation
Q Zou, N Gui, X Yang, J Tu, S Jiang - Progress in Nuclear Energy, 2023 - Elsevier
The flow, stacking, and mixing of pebbles in the High-Temperature Gas-cooled Reactor
(HTGR) will affect the power distribution of the core and thus affect the economy and safety …
(HTGR) will affect the power distribution of the core and thus affect the economy and safety …
A GPU-based DEM model for the pebble flow study in packed bed: Simulation scheme and validation
Q Zou, N Gui, X Yang, J Tu, S Jiang - Powder Technology, 2023 - Elsevier
This study developed a GPU-based DEM (GPU-DEM) model for the pebble flow in the
packed bed. The details of the GPU-DEM scheme have been illustrated. The uniform mesh …
packed bed. The details of the GPU-DEM scheme have been illustrated. The uniform mesh …
A high-efficient anisotropic continuum model for the optimization of heat transfer and chemical reaction in a packed-bed water gas shift reactor
The packed bed reactor with the high-temperature shift reaction has been a competitive
industrial device for the production of hydrogen fuel. While the temperature distribution in the …
industrial device for the production of hydrogen fuel. While the temperature distribution in the …
DEM simulations in nuclear engineering: a review of recent progress
R Li, G Duan, M Sakai - Journal of Nuclear Science and …, 2024 - Taylor & Francis
In nuclear engineering, solid particles are associated with numerous processes, such as
solid–fluid flows in pebble bed reactors, coating during fuel fabrication, and debris bed …
solid–fluid flows in pebble bed reactors, coating during fuel fabrication, and debris bed …
High-fidelity MC-DEM modeling and uncertainty analysis of HTR-PM first criticality
A high-fidelity model for the first criticality of pebble-bed reactor HTR-PM is built using Monte
Carlo (MC) code RMC and discrete element method (DEM) code LAMMPS. Randomly …
Carlo (MC) code RMC and discrete element method (DEM) code LAMMPS. Randomly …
[HTML][HTML] Prediction of the remaining time and time interval of pebbles in pebble bed HTGRs aided by CNN via DEM datasets
Prediction of the time-related traits of pebble flow inside pebble-bed HTGRs is of great
significance for reactor operation and design. In this work, an image-driven approach with …
significance for reactor operation and design. In this work, an image-driven approach with …
Effects of the 3-D wall structures on the flow and mixing characteristics of pebbles in pebble beds in HTR-10
The pebbles' movement in the pebble beds of 10 MW high-temperature gas-cooled test
reactor (HTR-10) presents as a kind of circulating quasi-static dense pebble flow. The mixing …
reactor (HTR-10) presents as a kind of circulating quasi-static dense pebble flow. The mixing …
A new discrete element-embedded finite element method for transient deformation, movement and heat transfer in packed bed
A new discrete element-embedded finite element method (DEFEM) scheme is proposed
here, which solves the contact force and heat conduction of particles with embedded …
here, which solves the contact force and heat conduction of particles with embedded …
[HTML][HTML] Pebble flow in the HTR-PM reactor core by GPU-DEM simulation: Effect of friction
Z Zhang, Q Zou, N Gui, B Xia, Z Liu, X Yang - Nuclear Engineering and …, 2024 - Elsevier
The high-temperature gas-cooled reactor (HTGR) with spherical fuel elements contains
complex pebble flow. The flow behavior of pebbles is influenced by various factors, such as …
complex pebble flow. The flow behavior of pebbles is influenced by various factors, such as …