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Computer Simulation of Flow and Heat Transfer in Bare Tubes at Supercritical Parameters

[+] Author Affiliations
Alexander Zvorykin

National Technical University of Ukraine, Kiev, Ukraine

Sergey Aleshko, Nataliia Fialko, Nikolay Maison, Nataliia Meranova

National Academy of Sciences of Ukraine, Kiev, Ukraine

Artem Voitenko

National Aviation University, Kiev, Ukraine

Igor Pioro

University of Ontario Institute of Technology, Oshawa, ON, Canada

Paper No. ICONE24-60390, pp. V005T15A023; 12 pages
doi:10.1115/ICONE24-60390
From:
  • 2016 24th International Conference on Nuclear Engineering
  • Volume 5: Student Paper Competition
  • Charlotte, North Carolina, USA, June 26–30, 2016
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 978-0-7918-5005-3
  • Copyright © 2016 by ASME

abstract

This paper deals with CFD predictions for flow and heat transfer in supercritical water in a bare tube. Studies were performed using the software FLUENT for upward flows in vertical tubes with heated length of 4 m and an inner diameter of 10 mm at high values of mass flux (G > 1000 kg/m2s). Turbulence models verification data for the given physical conditions are presented. Besides the testing of different turbulence models that are presented in modern catalog of these models is carried out. Namely, the models related to the following three groups: High–Reynolds number k-ε models with wall functions, k-ω models and Low-Reynolds number k-ε models were considered. On the basis of performed studies the best compliance of known experimental data with computer simulation results fits the k-ω SST turbulence model is shown.

Copyright © 2016 by ASME

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