Modeling of Lateral Flow in CFD for Subchannel Analysis
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F22%3A00376437" target="_blank" >RIV/68407700:21340/22:00376437 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1080/00295450.2022.2053807" target="_blank" >https://doi.org/10.1080/00295450.2022.2053807</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/00295450.2022.2053807" target="_blank" >10.1080/00295450.2022.2053807</a>
Alternative languages
Result language
angličtina
Original language name
Modeling of Lateral Flow in CFD for Subchannel Analysis
Original language description
This paper is aimed at the application of computational fluid dynamics (CFD) calculations for lateral flow modeling in rod bundles of Russian-type pressurized water reactors with hexagonal fuel rod lattice by subchannel analysis under a constant temperature. The subchannel code SUBCAL and CFD code ANSYS Fluent with the Reynolds stress turbulence model, which is capable of solving the anisotropic flow present in rod bundles, are used. Both methods are compared in terms of calculations in rod bundles. The literature review of available experiments of rod bundles suitable for CFD calculation validation follows. This paper describes the created CFD models on a triangular lattice, which are subsequently validated on selected experimental data in a wide range of Reynolds numbers 2.0. 10(4) <= Re <= 1.8 . 10(5) and geometry (pitch-to-rod diameter ratio) 1.06 <= P/D <= 1.50 together with mesh sensitivity analysis. The main part of this work is to develop a new equation for the lateral flow resistance coefficient for the subchannel code based on CFD calculations. Within these calculations, the turbulent mixing coefficient beta for hydraulically smooth rod bundles, which is related to the geometry, and the momentumenergy transfer analogy correction factor e are also evaluated and for which the equation is subsequently proposed.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10304 - Nuclear physics
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nuclear Technology
ISSN
0029-5450
e-ISSN
1943-7471
Volume of the periodical
208
Issue of the periodical within the volume
10
Country of publishing house
US - UNITED STATES
Number of pages
14
Pages from-to
1591-1604
UT code for WoS article
000803997700001
EID of the result in the Scopus database
2-s2.0-85131369761