Simulation of Subcooled Boiling in Multiphase CFD Code CFX

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F19%3A00338803" target="_blank" >RIV/68407700:21220/19:00338803 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Simulation of Subcooled Boiling in Multiphase CFD Code CFX
Original language description
This paper presents a validation of multiphase Computational Fluid Dynamics (CFD) code Ansys CFX 18 on selected experiments with the subcooled boiling flow. Ansys CFX code can simulate multiphase flow by solving three balance equations for each phase (Euler-Euler approach). Boiling on the heated wall can be simulated with the model proposed by Kurul and Podowski. A set of mathematical models of physical phenomena in boiling bubbly flow was selected and tested on the following experiments with subcooled boiling: DEBORA experiments, ASU experiments, FRIGG FT-6a experiment, and Bartolomej et al. experiment. The DEBORA experiment is a vertical pipe with a heated wall. The working fluid is freon R-12. The ASU boiling experiment is a vertical annular channel with a heated inner wall and freon R-113. The FRIGG FT-6a experiment is a vertical channel with 6 heated rods and boiling water. The Bartolomej experiment is a vertical heated pipe with boiling water. It was found out that CFX code can reasonably reproduce measured data in all these experiments. At the end of this paper, we present an application of this modeling approach to the real case with a complicated geometry: simulation of subcooled boiling in the VVER-1000 fuel assembly with bent rods.
Czech name
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Czech description
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Project
<a href="/en/project/TH02020360" target="_blank" >TH02020360: Modeling of CHF-boiling crisis by using CFD computer codes</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the 29th Symposium of AER on VVER Reactor Physics and Reactor Safety
ISBN
978-963-7351-32-7
ISSN
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e-ISSN
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Number of pages
17
Pages from-to
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Publisher name
Atomic Energy Research
Place of publication
Budapest
Event location
Mochovce
Event date
Oct 14, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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