Experimental study of the flow characteristics in an SFR type 61-pin rod bundle using iso-kinetic sampling method
Sign Up to like & getrecommendations! Published in 2017 at "Annals of Nuclear Energy"
DOI: 10.1016/j.anucene.2017.03.024
Abstract: Abstract Hydrodynamic experiments were performed to characterize pressure drop and flow distribution in the subchannels of KAERI’s fuel bundle configuration. A 61-pin wire wrapped rod bundle was chosen as a test assembly considering the hydrodynamic… read more here.
Keywords: rod bundle; iso kinetic; pressure drop; rod ... See more keywords
PIV measurement of cross flow in a rod bundle assisted by telecentric optics and matched index of refraction
Sign Up to like & getrecommendations! Published in 2018 at "Annals of Nuclear Energy"
DOI: 10.1016/j.anucene.2018.06.024
Abstract: Abstract Spacer grids induce local flow disturbance in fuel assembly including lateral cross flow and elevated turbulence fluctuation. In order to investigate the cross flow downstream of spacer grids and to provide the high-fidelity data… read more here.
Keywords: rod bundle; cross; measurement; cross flow ... See more keywords
Towards the Direct Numerical Simulation of a closely-spaced bare rod bundle
Sign Up to like & getrecommendations! Published in 2018 at "Annals of Nuclear Energy"
DOI: 10.1016/j.anucene.2018.07.022
Abstract: Abstract The aim of the present research work is to design a numerical experiment for a closely-spaced bare rod bundle in order to perform a DNS, which will serve as a reference for the verification… read more here.
Keywords: rod bundle; spaced bare; bare rod; closely spaced ... See more keywords
Experimental research on subcooled boiling heat transfer for natural circulation flow in a vertical 3 × 3 rod bundle
Sign Up to like & getrecommendations! Published in 2020 at "Annals of Nuclear Energy"
DOI: 10.1016/j.anucene.2019.106989
Abstract: Abstract To meet the requirement of passive safety, natural circulation has been applied in cooling the nuclear reactor core. In comparison with the great successes in predicting subcooled boiling in simple geometries such as pipes,… read more here.
Keywords: heat; rod bundle; subcooled boiling; natural circulation ... See more keywords
Rod bundle thermal-hydraulics experiment with water and water-Al2O3 nanofluid for small modular reactor
Sign Up to like & getrecommendations! Published in 2021 at "Annals of Nuclear Energy"
DOI: 10.1016/j.anucene.2020.107870
Abstract: Abstract This study offers state-of-the-art rod bundle facility development and testing with modified coolant, with the prospects and challenges for the small modular reactor (SMR). The thermal-hydraulics characteristics of a 3 × 3 square array… read more here.
Keywords: rod bundle; water; modular reactor; thermal hydraulics ... See more keywords
CFD analyses of mixed and forced convection in a heated vertical rod bundle
Sign Up to like & getrecommendations! Published in 2017 at "Applied Thermal Engineering"
DOI: 10.1016/j.applthermaleng.2017.02.020
Abstract: Abstract The effects of spacer grid blockage ratio and spacer grid spacing on heat transfer in a vertical rod bundle are presented in this study. A 3-D model of a 1/8th cross-section of a subchannel… read more here.
Keywords: rod bundle; spacer grid; vertical rod;
Experimental investigation on local/global void distribution of air-water two-phase flow in a 3 × 3 rod bundle channel under low-flow conditions
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Heat and Fluid Flow"
DOI: 10.1016/j.ijheatfluidflow.2020.108623
Abstract: Abstract In this study, the vertical upward air–water two-phase flow tests have been carried out to investigate the distribution of local and global void fractions in a rod bundle channel under low-flow conditions. The height… read more here.
Keywords: rod bundle; void; global void; channel ... See more keywords
Investigation of the thermal-hydraulic non-equilibrium in a 7 × 7 rod bundle during reflood
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Heat and Mass Transfer"
DOI: 10.1016/j.ijheatmasstransfer.2018.08.011
Abstract: Abstract The current research aims at investigating the thermal–hydraulic non-equilibrium encountered in the dispersed flow film boiling (DFFB) regime under reflood conditions. A series of constant reflood tests have been performed at the 7 × 7 Rod… read more here.
Keywords: rod bundle; thermal hydraulic; reflood; equilibrium ... See more keywords
Constitutive equations for vertical upward two-phase flow in rod bundle
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Heat and Mass Transfer"
DOI: 10.1016/j.ijheatmasstransfer.2018.08.067
Abstract: Abstract In view of the quality assurance of two-phase flow simulations, CSAU (Code Scalability, Applicability, and Uncertainty) methodology and code V & V (Verification and Validation) have been proposed. The estimation of simulation uncertainty is… read more here.
Keywords: rod bundle; phase; two phase; phase flow ... See more keywords
Flow regime and void fraction predictions in vertical rod bundle flow channels
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Heat and Mass Transfer"
DOI: 10.1016/j.ijheatmasstransfer.2021.121637
Abstract: Abstract This paper has studied the flow regimes and their transitions in upward gas-liquid two-phase flows in vertical rod bundle flow channels. The past experimental observations on the flow regimes have been extensively reviewed and… read more here.
Keywords: flow regime; rod bundle; vertical rod; transition ... See more keywords
Subchannel analysis of thermal-hydraulic performance in rod bundle with spacer grid considering anisotropic turbulent mixing
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Thermal Sciences"
DOI: 10.1016/j.ijthermalsci.2021.107039
Abstract: Abstract Combined with the relationship between the time averaged parameters of flow field and the inter-subchannel transverse turbulent mixing velocity, a method for solving the mixing velocity between adjacent subchannels is presented in this paper.… read more here.
Keywords: rod bundle; turbulent mixing; rod; spacer grid ... See more keywords