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Journal of Applied Sciences

Year: 2006 | Volume: 6 | Issue: 12 | Page No.: 2541-2548
DOI: 10.3923/jas.2006.2541.2548
Effect of Curvature Ratio on Cooperating Double-Diffusive Convection in Vertical Annular Cavities
Noureddine Retiel, El-Hadi Bouguerra and Mohamed Aï chouni

Abstract: A numerical study is performed on double diffusive natural convection fluid flow in a vertical closed annulus. Uniform temperature and concentration are imposed across the vertical walls. The aim of this study is to present numerical results on the cooperating double diffusive convection phenomena in a vertical annular cavity under different curvature ratio (K = 1-20). The numerical procedure used is based on the solution of the momentum equations coupled with the energy and concentration equations. A finite-volume method is adopted to solve the governing equations. The analysis of the numerical results obtained concerns the study of the effects of the buoyancy ratio governing the physical problem on the heat and mass transfer characteristics and on the flow structure. Double diffusive flow structures have been successfully simulated under certain conditions.

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How to cite this article
Noureddine Retiel, El-Hadi Bouguerra and Mohamed Aï chouni, 2006. Effect of Curvature Ratio on Cooperating Double-Diffusive Convection in Vertical Annular Cavities. Journal of Applied Sciences, 6: 2541-2548.

Keywords: Natural convection, thermosolutal, annular cavity, concentration, temperature and mass transfer

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