Numerical investigation of double-diffusive mixed convection in horizontal annulus partially filled with a porous medium
International Journal of Numerical Methods for Heat & Fluid Flow
ISSN: 0961-5539
Article publication date: 3 April 2017
Abstract
Purpose
Double-diffusive convection within a tri-dimensional in a horizontal annulus partially filled with a fluid-saturated porous medium is numerically investigated. The aim of this work is to understand the effects of a source of heat and solute on the fluid flow and heat and mass transfer rates.
Design/methodology/approach
In the formulation of the problem, the Darcy–Brinkman–Forchheimer model is adopted to the fluid flow in the porous annulus. The laminar flow regime is considered under steady state conditions. Moreover, the transport equation for continuity, momentum, energy and mass transfer are solved using the Patankar–Spalding technique.
Findings
Through this investigation, the predicted results for both average Nusselt and Sherwood numbers were correlated in terms of Lewis number, thermal Grashof number and buoyancy ration. A comparison was made with the published results and a good agreement was found.
Originality/value
The paper’s results are validated by favorable comparisons with previously published results. The results of the problem are presented in graphical forms and discussed. This paper aims to study the behavior of the flow structure and heat transfer and mass for different parameters.
Keywords
Acknowledgements
This research was supported by the Ministry of Higher Education and Scientific Research of Algeria through collaboration between the laboratory LMFTA of USTHB in Algeria and IRTES M3M of UTBM Belfort France.
Citation
Moderres, M., Abboudi, S., Ihdene, M., Aberkane, S. and Ghezal, A. (2017), "Numerical investigation of double-diffusive mixed convection in horizontal annulus partially filled with a porous medium", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 27 No. 4, pp. 773-794. https://doi.org/10.1108/HFF-10-2015-0434
Publisher
:Emerald Publishing Limited
Copyright © 2017, Emerald Publishing Limited