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BELHARIZI, M. KHORSI, A. YAHIAOUI, T. LADJEDEL, O. ADJLOUT, L. ZEMANI, F. ŠIKULA, O.
Original Title
RANS AND LES COMPUTATIONS OF NATURAL CONVECTION IN A SQUARE CAVITY
Type
journal article in Web of Science
Language
English
Original Abstract
Turbulent natural convection (Ra = 1.58 center dot 10(9)) in a confined 3D square cavity with two differentially heated side walls are simulated numerically using the in-house EDF code (Code_Saturne) based on the unstructured finite volume solver. The objective of the present work is to investigate the performance of the low-Reynolds-number models known by their good suitability for the near-wall treatment. The low-Reynolds-number models, shear stress transport (SST) k-omega. model, phi-f model which is a developed version of the original (upsilon) over bar (2) - f model, and the LES (large-eddy simulation) technique are used, and the results of their using are compared with the experimental benchmark data. The numerical results show quantitative and qualitative agreements. In general, the SST k-omega model gives good predictions for the temperature profiles, and the phi-f model is more accurate for the velocity profile prediction. This is mainly due to the good resolution of the turbulence properties in the near-wall region and to the ability to mimic the physical flow features in this type of geometries.
Keywords
heat transfer; natural convection; differentially heated cavity; RANS; LES
Authors
BELHARIZI, M.; KHORSI, A.; YAHIAOUI, T.; LADJEDEL, O.; ADJLOUT, L.; ZEMANI, F.; ŠIKULA, O.
Released
16. 8. 2023
Publisher
SPRINGER
Location
NEW YORK
ISBN
1062-0125
Periodical
Journal of Engineering Physics and Thermophysics
Year of study
96
Number
State
United States of America
Pages from
1
Pages to
10
Pages count
11
URL
https://link.springer.com/article/10.1007/s10891-023-02765-2
BibTex
@article{BUT184470, author="Morad {Belharizi} and Azzeddine {Khorsi} and Tayeb {Yahiaoui} and Omar {Ladjedel} and Lahouari {Adjlout} and Farah {Zemani} and Ondřej {Šikula}", title="RANS AND LES COMPUTATIONS OF NATURAL CONVECTION IN A SQUARE CAVITY", journal="Journal of Engineering Physics and Thermophysics", year="2023", volume="96", number="96", pages="1--10", doi="10.1007/s10891-023-02765-2", issn="1062-0125", url="https://link.springer.com/article/10.1007/s10891-023-02765-2" }