Natural convection in partitioned enclosures is extensively investigated due to its importance in many applications. Real enclosures have diffusive walls and partitions. A method has been developed to evaluate the global natural convection Nusselt number for a differentially heated (heated from sides) partitioned enclosure with walls and vertical partitions of finite thickness. A formula has been elaborated, giving the global Nusselt number as a function of the global Rayleigh number, global aspect ratio of the whole enclosure, and two other dimensionless parameters: the conductive thermal resistance ratio and the porosity. After validation of the method by comparison of our results with those from both the literature studies and the numerical simulation, a parametric study is carried out to show the influence of the dimensionless parameters. The method is a helpful tool for thermal engineers and scientists to design such a common system.
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June 2009
Research Papers
One-Dimensional Model of Natural Convection in Differentially Heated Partitioned Enclosures With Conducting External Walls and Vertical Partitions
V. Sambou,
V. Sambou
P.H.A.S.E.,
e-mail: vsambou@ucad.sn
Université Paul Sabatier
, 118 route de Narbonne, 31062 Toulouse Cedex 9, France; L.E.A., Ecole Supérieure Polytechnique
, BP 5085 Dakar Fann, Sénégal
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B. Lartigue,
B. Lartigue
P.H.A.S.E.,
Université Paul Sabatier
, 118 route de Narbonne, 31062 Toulouse Cedex 9, France
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F. Monchoux,
F. Monchoux
P.H.A.S.E.,
Université Paul Sabatier
, 118 route de Narbonne, 31062 Toulouse Cedex 9, France
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J. L. Breton
J. L. Breton
P.H.A.S.E.,
Université Paul Sabatier
, 118 route de Narbonne, 31062 Toulouse Cedex 9, France
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V. Sambou
P.H.A.S.E.,
Université Paul Sabatier
, 118 route de Narbonne, 31062 Toulouse Cedex 9, France; L.E.A., Ecole Supérieure Polytechnique
, BP 5085 Dakar Fann, Sénégale-mail: vsambou@ucad.sn
B. Lartigue
P.H.A.S.E.,
Université Paul Sabatier
, 118 route de Narbonne, 31062 Toulouse Cedex 9, France
F. Monchoux
P.H.A.S.E.,
Université Paul Sabatier
, 118 route de Narbonne, 31062 Toulouse Cedex 9, France
J. L. Breton
P.H.A.S.E.,
Université Paul Sabatier
, 118 route de Narbonne, 31062 Toulouse Cedex 9, France
J. Thermal Sci. Eng. Appl. Jun 2009, 1(2): 021002 (6 pages)
Published Online: August 20, 2009
Article history
Received:
January 9, 2009
Revised:
July 7, 2009
Published:
August 20, 2009
Citation
Sambou, V., Lartigue, B., Monchoux, F., and Breton, J. L. (August 20, 2009). "One-Dimensional Model of Natural Convection in Differentially Heated Partitioned Enclosures With Conducting External Walls and Vertical Partitions." ASME. J. Thermal Sci. Eng. Appl. June 2009; 1(2): 021002. https://doi.org/10.1115/1.3202795
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