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.
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.
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.
The originality of this work is to analyze the entropy generation and natural convection in a cubical cavity with volumetrically heating.
Kolsi, L., Abu-Hamdeh, N., Öztop, H., Alghamdi, A., Mohamad Naceur, B. and Ben Assia, H. (2016), "Natural convection and entropy generation in a three dimensional volumetrically heated and partially divided cavity", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 26 No. 8, pp. 2492-2508. https://doi.org/10.1108/HFF-09-2015-0358Download as .RIS
Emerald Group Publishing Limited
Copyright © 2016, Emerald Group Publishing Limited