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Research Article
 

Effect of Curvature Ratio on Cooperating Double-Diffusive Convection in Vertical Annular Cavities



Noureddine Retiel , El-Hadi Bouguerra and Mohamed Aïchouni
 
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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 Aïchouni , 2006. Effect of Curvature Ratio on Cooperating Double-Diffusive Convection in Vertical Annular Cavities. Journal of Applied Sciences, 6: 2541-2548.

DOI: 10.3923/jas.2006.2541.2548

URL: https://scialert.net/abstract/?doi=jas.2006.2541.2548

REFERENCES
1:  Bahloul, A., M. Yahiaoui, P. Vasseur, R. Bennacer and H. Beji, 2006. Natural convection of a two-component fluid in porous media bounded by tall concentric vertical cylinders. J. Applied Mech., 73: 26-33.

2:  Bejan, A., 1985. Mass and heat transfer by natural convection in a vertical cavity. J. Heat Fluid Flow, 6: 149-159.

3:  Bennacer, R. and D. Gobin, 1996. Cooperating thermosolutal convection in enclosures. I. Scale analysis and mass transfer. Int. J. Heat Mass Transfer, 39: 2683-2698.
Direct Link  |  

4:  Bennacer, R., H. Beji, R. Duval and P. Vasseur, 2000. The brinkman model for thermosolutal convection in a vertical annular porous layer. Int. Commun. Heat Mass Transfer, 27: 69-80.
CrossRef  |  Direct Link  |  

5:  Gebhart, B. and L. Pera, 1971. The nature of vertical natural convection flows resulting from the combined buoyancy effects of thermal and mass diffusion. Int. J. Heat Mass Transfer, 14: 2025-2050.
CrossRef  |  

6:  Gobin, D. and R. Bennacer, 1996. Cooperating thermosolutal convection in enclosures II. Heat transfer and flow structure. Int. J. Heat Mass Transfer, 39: 2983-2997.

7:  Han, H. and T.H. Kuehn, 1991. Double diffusive natural convection in a vertical rectangular enclosure. Part I: Experimental study. Int. J. Heat Mass Transfer, 34: 449-460.

8:  Kamotani, Y., L.W. Wang, S. Ostrach and H.D. Jiang, 1985. Experimental study of natural convection in shallow enclosures with horizontal temperature and concentration gradients. Int. J. Heat Mass Transfer, 28: 165-173.
Direct Link  |  

9:  Le Quere, P., 1987. Etude de la transition a l'instationarite des ecoulements de convection naturelle en cavite verticale differentiellement chauffee par methodes spectrales chebyshev. Ph.D. Thesis, University of Poitiers, France.

10:  Lin, T.F., C.C. Huang and T.S. Chang, 1990. Transient binary mixture natural convection in square enclosure. Int. J. Heat Mass Transfer, 33: 287-299.

11:  Patankar, S.V., 1980. Numerical Heat Transfer and Fluid Flow. McGraw-Hill, New York, USA.

12:  Prasad, V., 1986. Numerical study of natural convection in a vertical, porous annulus with constant heat flux on the inner wall. Int. J. Heat Mass Transfer, 29: 841-853.

13:  Retiel, N., 1995. Etude numerique de la convection thermosolutale en cavite annulaire. Solutions stationnaires et instationnaires. Ph.D. Thesis, The University of Poitiers, France.

14:  Shipp, P.W., M. Shoukri and M.B. Carver, 1993. Double-diffusive natural convection in a closed annulus. Numerical Heat Transfer Part A, 24: 339-356.

15:  Shipp, P.W., M. Shoukri and M.B. Carver, 1993. Effect of thermal rayleigh and lewis numbers on double-diffusive natural convection in a closed annulus. J. Numerical Heat Transfer Part A, 24: 451-465.
Direct Link  |  

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