An overview of the AHFM-NRG formulations for the accurate prediction of turbulent flow and heat transfer in low-Prandtl number flows
Turbulent heat transfer is a complex phenomenon, which is ubiquitous in engineering
applications and has challenged turbulence modellers for several decades. In an attempt to …
applications and has challenged turbulence modellers for several decades. In an attempt to …
Heat transfer of supercritical carbon dioxide in a tube-in-tube heat exchanger-a CFD study
For better design and optimization of the heat exchanger (HX), forced convective heat
transfer and flow characteristics of supercritical carbon dioxide (SCO2) in a water-cooled …
transfer and flow characteristics of supercritical carbon dioxide (SCO2) in a water-cooled …
Modified turbulent Prandtl number model for helium–xenon gas mixture with low Prandtl number
B Zhou, Y Ji, J Sun, Y Sun - Nuclear Engineering and Design, 2020 - Elsevier
Gas-cooled space nuclear-reactor systems generally adopt the helium–xenon mixture (He–
Xe) as a working fluid and coolant, the Prandtl number (Pr) of which is low for recommended …
Xe) as a working fluid and coolant, the Prandtl number (Pr) of which is low for recommended …
[HTML][HTML] RANS thermal modelling of a natural convection boundary layer at low Prandtl number
AV Ortiz, L Koloszar - Computers & Fluids, 2023 - Elsevier
The present work evaluates the performance of different RANS turbulence models in a
natural convection boundary layer at three different Prandtl numbers: 0.71, 0.2 and 0.025 …
natural convection boundary layer at three different Prandtl numbers: 0.71, 0.2 and 0.025 …
Turbulence Modelling for Advanced Nuclear Reactor Fuel Assemblies: Current Status and Future Perspectives
A Shams - Arabian Journal for Science and Engineering, 2024 - Springer
Abstract The Generation IV International Forum (GIF) has selected six advanced reactors
that offer promising technology. Thermal-hydraulics plays an important role in further …
that offer promising technology. Thermal-hydraulics plays an important role in further …
Direct numerical simulation of low-Prandtl fluid flow over a confined backward facing step
The paper presents the direct numerical simulation (DNS) of a confined backward facing
(BFS) step geometry with a flow of two fluids with Prandtl numbers 0.005 and 0.1. The …
(BFS) step geometry with a flow of two fluids with Prandtl numbers 0.005 and 0.1. The …
Nusselt number correlation for turbulent heat transfer of helium–xenon gas mixtures
B Zhou, Y Ji, J Sun, YL Sun - Nuclear Science and Techniques, 2021 - Springer
A gas-cooled nuclear reactor combined with a Brayton cycle shows promise as a technology
for high-power space nuclear power systems. Generally, a helium–xenon gas mixture with a …
for high-power space nuclear power systems. Generally, a helium–xenon gas mixture with a …
Numerical study of flow and heat transfer characteristics in a simplified dual fluid reactor
H Elgendy, K Czerski - Energies, 2023 - mdpi.com
This study presents the design and computational fluid dynamics (CFD) analysis of a mini
demonstrator for a dual fluid reactor (DFR). The DFR is a novel concept currently under …
demonstrator for a dual fluid reactor (DFR). The DFR is a novel concept currently under …
Towards validated prediction with RANS CFD of flow and heat transport in a wire-wrap fuel assembly
Liquid metal fast reactors (LMFRs) are foreseen to play an important role in the future of
nuclear energy, thanks to their increased fuel utilization and safety features profiting from the …
nuclear energy, thanks to their increased fuel utilization and safety features profiting from the …
Towards the accurate prediction of axial flow and heat transfer in a tightly spaced bare rod bundle configuration
T Kwiatkowski, A Shams - Nuclear Engineering and Design, 2023 - Elsevier
The understanding of flow behaviour and temperature distribution in rod bundles during
operation is of great importance for the safety and economical design of existing nuclear …
operation is of great importance for the safety and economical design of existing nuclear …