Publication result detail

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.

Original Title

RANS AND LES COMPUTATIONS OF NATURAL CONVECTION IN A SQUARE CAVITY

English Title

RANS AND LES COMPUTATIONS OF NATURAL CONVECTION IN A SQUARE CAVITY

Type

WoS Article

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.

English 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

Key words in English

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

Authors

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

RIV year

2024

Released

16.08.2023

Publisher

SPRINGER

Location

NEW YORK

ISBN

1062-0125

Periodical

JOURNAL OF ENGINEERING PHYSICS AND THERMOPHYSICS

Volume

96

Number

96

State

Republic of Belarus

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"
}