A CFD analysis of the flow dynamics of a directly-operated safety relief valve

NL Scuro, E Angelo, G Angelo, DA Andrade - Nuclear Engineering and …, 2018 - Elsevier
A three-dimensional numerical study on steady state was designed for a safety relief valve
using several openings and inlet pressures. The ANSYS-CFX® commercial code was used …

Review of Refractive Index‐Matching Techniques of Polymethyl Methacrylate in Flow Field Visualization Experiments

D Fan, R Li, M He, X Li, J Li, J Wen, Y Hu… - … Journal of Energy …, 2023 - Wiley Online Library
The development of modern computational fluid dynamics (CFD) technology provides many
preliminary references for experimental design. In addition, the CFD calculation results …

High-fidelity PIV measurement of cross flow in 5× 5 rod bundle with mixing vane grids

W Qu, J Xiong, S Chen, X Cheng - Nuclear Engineering and Design, 2019 - Elsevier
In order to achieve high-fidelity PIV measurement for cross flow in rod bundles, the
measurement approach with the two-dimensional (2D) PIV has been optimized …

PIV study of velocity distribution and turbulence statistics in a rod bundle

X Li, Z Mi, S Tan, R Wang, X Wang - Annals of Nuclear Energy, 2018 - Elsevier
In reactor fuel assembly in PWR, spacer grids with mixing vanes are used in rod bundles to
enhance flow mixing and heat transfer. Thus, the spacer grids have significant influence on …

Experimental study of cross flow and lateral pressure drop in a 5× 5 rod bundle with mixing vane spacer grid

W Qu, Z Wang, J Xiong, X Cheng - Nuclear Engineering and Design, 2019 - Elsevier
Cross flow and lateral pressure drop downstream a split-type mixing vane spacer grid in a
5× 5 rod bundle were experimentally measured by particle image velocimetry (PIV) and …

Computational fluid dynamics (CFD) round robin benchmark for a pressurized water reactor (PWR) rod bundle

SK Kang, YA Hassan - Nuclear Engineering and Design, 2016 - Elsevier
This study examined the capabilities and limitations of steady Reynolds-Averaged Navier–
Stokes (RANS) approach for pressurized water reactor (PWR) rod bundle problems, based …

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 …

[HTML][HTML] Validation of RANS models and Large Eddy simulation for predicting crossflow induced by mixing vanes in rod bundle

F Wiltschko, W Qu, J Xiong - Nuclear Engineering and Technology, 2021 - Elsevier
The crossflow is the key phenomenon in turbulent flow inside rod bundles. In order to
establish confidence on application of computational fluid dynamics (CFD) to simulate the …

Commissioning of an MRI test facility for CFD-grade flow experiments in replicas of nuclear fuel assemblies and other reactor components

M Bruschewski, K John, C Wüstenhagen… - … Engineering and Design, 2021 - Elsevier
A new test facility is presented, enabling single-phase isothermal fluid mechanics
experiments to support nuclear reactor safety studies. The applied measurement technique …

Numerical analysis of MHD free convection in curvilinear porous enclosure with two active cylinders filled with NE-phase change material

MA Alomari, FH Ali, QH Al-Salami, HK Hamzah… - Journal of Energy …, 2024 - Elsevier
In nuclear power industry, the energy conservation of heat exchangers is a crucial demand.
The current study addresses the influence of nano-encapsulated phase change material …