TY  - JOUR
AB  - Purpose The purpose of this paper is to provide a solution for natural convection in a cavity with a partial heater in case of volumetric heating and analysis of the entropy generation.Design/methodology/approach The control volume method based on three-dimensional (3D) vorticity-potential vector was applied to solve governing equations of natural convection in a 3D cavity with a fin for different governing parameters as external Rayleigh numbers (103=RaE=106), internal Rayleigh numbers 103=RaI=106, partition height (0.25=h=0.75) and partition location (0.25=c=0.75). A code was written by using Fortran platform.Findings The edge of the fin becomes important on entropy generation. The ratio of the RaI/RaE plays the important role on natural convection and entropy generation. The variation of external Rayleigh number becomes insignificant for the RaI/RaE>1.Originality/value The originality of this work is to analyze the entropy generation and natural convection in a cubical cavity with volumetrically heating.
VL  - 26
IS  - 8
SN  - 0961-5539
DO  - 10.1108/HFF-09-2015-0358
UR  - https://doi.org/10.1108/HFF-09-2015-0358
AU  - Kolsi Lioua
AU  - Abu-Hamdeh Nidal
AU  - Öztop Hakan F.
AU  - Alghamdi Abdulaziz
AU  - Mohamad Naceur Borjini
AU  - Ben Assia Habib
PY  - 2016
Y1  - 2016/01/01
TI  - Natural convection and entropy generation in a three dimensional volumetrically heated and partially divided cavity
T2  - International Journal of Numerical Methods for Heat & Fluid Flow
PB  - Emerald Group Publishing Limited
SP  - 2492
EP  - 2508
Y2  - 2024/04/25
ER  -