Detail publikačního výsledku

RANS AND LES COMPUTATIONS OF NATURAL CONVECTION IN A SQUARE CAVITY

BELHARIZI, M.; KHORSI, A.; YAHIAOUI, T.; LADJEDEL, O.; ADJLOUT, L.; ZEMANI, F.; ŠIKULA, O.

Originální název

RANS AND LES COMPUTATIONS OF NATURAL CONVECTION IN A SQUARE CAVITY

Anglický název

RANS AND LES COMPUTATIONS OF NATURAL CONVECTION IN A SQUARE CAVITY

Druh

Článek WoS

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

heat transfer; natural convection; differentially heated cavity; RANS; LES

Klíčová slova v angličtině

heat transfer; natural convection; differentially heated cavity; RANS; LES

Autoři

BELHARIZI, M.; KHORSI, A.; YAHIAOUI, T.; LADJEDEL, O.; ADJLOUT, L.; ZEMANI, F.; ŠIKULA, O.

Rok RIV

2024

Vydáno

16.08.2023

Nakladatel

SPRINGER

Místo

NEW YORK

ISSN

1062-0125

Periodikum

JOURNAL OF ENGINEERING PHYSICS AND THERMOPHYSICS

Svazek

96

Číslo

96

Stát

Běloruská republika

Strany od

1

Strany do

10

Strany počet

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"
}