Studies on the subcooled boiling in a fuel assembly with 5 by 5 rods using an improved wall boiling model

T Cong, R Zhang, L Chen, X Zhang, T Yu - Annals of Nuclear Energy, 2018 - Elsevier
An improved wall boiling model with consideration of thin film heat transfer was employed
with the Eulerian two-fluid model to investigate the three-dimensional flow boiling
characteristics in a fuel assembly with 5 by 5 rod bundle and a vaned grid. Models were
validated by using the experimental data for subcooled boiling, post-dryout heat transfer and
critical heat flux. The calculated results agreed well with experimental data.
Thermohydraulics in the rod bundle were obtained, including temperature, velocity, phasic …
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