# Numerical simulation of 3D natural convection and entropy generation in a cubic cavity equipped with an adiabatic baffle

Numerical simulation of 3D natural convection and entropy generation in a cubic cavity equipped with an adiabatic baffle

Kaouther Ghachem Walid Hassen Chemseddine Maatki Lioua Kolsi Abdullah A.A.A. Al-Rashed Mohamed Naceur Borjini

Unité de Recherche de Métrologie et des Systèmes Energétique, Ecole Nationale d’Ingénieurs, University of Monastir, Monastir 5000, Tunisia

College of Engineering, Mechanical Engineering Department, Haïl University, Haïl 2240, Saudi Arabia

Department of Automotive and Marine Engineering Technology, College of Technological Studies, the Public Authority for Applied Education and Training, Kuwait

Corresponding Author Email:
lioua_enim@yahoo.fr
Page:
1047-1054
|
DOI:
https://doi.org/10.18280/ijht.360335
14 October 2017
| |
Accepted:
28 August 2018
| | Citation

OPEN ACCESS

Abstract:

This paper presents a numerical study of natural convection and entropy generation in a cubic cavity fitted by a baffle plate. Three-dimensional analysis has been done by solving governing equations with a written computational code in FORTRAN based on FVM. The study was performed for two configurations related to the position of the baffle. The first one was carried for a baffle plate attached to the upper wall of the cavity although the second case was reserved for a baffle attached to the down face. The results are given for Rayleigh number (Ra=105), Prandtl number (Pr = 7.1) and baffle length (d = 0.5). The influences of baffle position on flow structure, temperature distribution, and heat transfer and entropy generation are presented.

Keywords:

FVM, 3D natural convection, baffle, entropy generation

1. Introduction
2. Physical Model and Computational Study
3. Verification of the Code
4. Results and Discussion
5. Conclusions
Nomenclature
References

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