[HTML][HTML] Experimental investigation on split-mixing-vane forced mixing in pressurized water reactor fuel assembly

J Xiong, W Qu, T Zhang, X Chai, X Liu, Y Yang - Annals of Nuclear Energy, 2020 - Elsevier
In nuclear fuel assembly mixing vanes are fabricated on the spacer grids to promote
diversion cross flow and turbulent mixing. In order to investigate the decay of diversion cross …

Experimental measurement of bubbly two-phase flow in a 4x4 rod bundle with wire mesh sensor

J Xiong, H Xie, S Du, X Cheng - Applied Thermal Engineering, 2023 - Elsevier
In order to investigate two-phase bubbly flow through fuel assembly of pressurized water
reactor (PWR), the wire mesh sensor (WMS) is employed to measure air-water flow in a up …

CFD investigation on thermal-hydraulic characteristics of a helical cruciform fuel bundle

H Zhao, Q Zhang, H Gu, Y Xiao, M Liu - Progress in Nuclear Energy, 2022 - Elsevier
The thermal-hydraulic performance of nuclear fuel has a very important effect on the safety
and economy of a reactor. The helical cruciform fuel (HCF) is an innovative fuel design with …

Experimental study of coherent structures downstream mixing vaned spacer grid of different inclination angles in a 5× 5 rod bundle by TR-PIV

W Qu, H Xie, D Shen, Z Wang, J Xiong - Annals of Nuclear Energy, 2023 - Elsevier
Experimental study of coherent structures downstream of a spacer grid with different
inclination angles (20°, 25°, 30°) of split-type mixing vanes in a 5× 5 rod bundle was …

[HTML][HTML] The effects of spacer grid arrangement on flow boiling characteristics and critical heat flux in a complex 5× 5 rod bundle channel

X Wang, Y Liu - Case Studies in Thermal Engineering, 2022 - Elsevier
In this study, a numerical model of two-phase flow boiling in a rod bundle channel was
developed to investigate the influence of spacer grid's arrangement on thermal-hydraulic …

Numerical investigation of the effect of mixing vanes on subcooled boiling in a 3× 3 rod bundle channel with spacer grid

P Yang, T Zhang, L Hu, L Liu, Y Liu - Energy, 2021 - Elsevier
Mixing vane grids (MVGs) are an integral part of nuclear reactor fuel assembly, and
significantly impact the flow and heat transfer characteristics of the coolant in a rod bundle …

Thermal-hydraulic CFD simulation of PWR 5× 5 bowing fuel assembly

B Wang, M Huang, W Liu, Y Li, Y Cheng - Annals of Nuclear Energy, 2023 - Elsevier
To investigate the effect of fuel assembly bowing on coolant flow and heat transfer, three-
dimensional thermal–hydraulic characteristics of 5× 5 bowing fuel assembly are investigated …

Experimental measurements of turbulent flows in a rod bundle with a 3-D printed channel-type spacer grid

CF Matozinhos, GCQ Tomaz, T Nguyen… - International Journal of …, 2020 - Elsevier
Pressurized water reactors (PWRs) are the most common types of electricity generating
nuclear reactors. Within their cores, fuel rods generate heat by fission and the high-pressure …

[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 …

Experimental study of pressure loss in a 5× 5–rod bundle with the mixing vane spacer grid

W Qu, W Yao, J Xiong, X Cheng - Frontiers in Energy Research, 2021 - frontiersin.org
Axial and lateral pressure loss in a 5× 5 rod–bundle with a split-type mixing vane spacer grid
was experimentally measured using differential pressure transmitters at different sub …