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TECHNICAL PAPERS: Natural and Mixed Convection

A Numerical Study of Natural Convection in Partially Open Enclosures With a Conducting Side-Wall

[+] Author and Article Information
G. Desrayaud

INSSET, Université de Picardie Jules Verne, 48 rue Raspail BP 422, 02109 Saint-Quentin, France

G. Lauriat

Université de Marne-la-Vallée, Champs-sur-Marne, 77454 Marne la Vallée Cedex 2, France

J. Heat Transfer 126(1), 76-83 (Mar 10, 2004) (8 pages) doi:10.1115/1.1643753 History: Received July 26, 2002; Revised October 16, 2003; Online March 10, 2004
Copyright © 2004 by ASME
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References

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Miyamoto,  M., Kuehn,  T. H., Goldstein,  R. J., and Katoh,  Y., 1989, “Two-Dimensional Laminar Natural Convection Heat Transfer From a Fully or Partially Open Square Cavity,” Numer. Heat Transfer, Part A, 15, pp. 411–430.
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Sparrow,  E. M., and Azevedo,  L. F. A., 1985, “Vertical-Channel Natural Convection Spanning Between the Fully-Developed Limit and the Single-Plate Boundary-Layer Limit,” Int. J. Heat Mass Transfer, 28(10), pp. 1847–1857.
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Naylor,  D., Floryan,  J. M., and Tarasuk,  J. D., 1991, “A Numerical Study of Developing Free Convection Between Isothermal Vertical Plates,” ASME J. Heat Transfer, 113, pp. 620–626.
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Zimmerman,  E., and Acharya,  A., 1987, “Free Convection Heat Transfer in a Partially Divided Vertical Enclosure With Conducting End Wall,” Int. J. Heat Mass Transfer, 30(2), pp. 319–331.
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Figures

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Geometry of the vented slot and computational domain (dashed lines)
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Velocity vectors (a) and temperature field (b) within the vented enclosure and along the bounding-wall for three Rayleigh numbers (A=100,l/D=1, isothermal patterns [−0.5 (0.1) 0.5])
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Vertical velocity profiles (a) and temperature distributions (b) at three vertical locations for various RaH(A=100,l/D=1)
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Variations of the flow rate as a function of RaH for various sizes of the vent openings (A=100)
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Velocity and temperature profiles at mid-height for various sizes of the vent openings (RaH=1010,A=100)
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Variations in average Nusselt numbers at the cooled wall and at the bounding wall as a function of the channel Rayleigh number (l/D=1)
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Variation in average Nusselt numbers at the cooled wall as a function of the channel Rayleigh number (l/D=1)
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Variation in the mass flow rate as a function of the channel Rayleigh number (l/D=1)
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Variation in the average temperature of the bounding wall as a function of the channel Rayleigh number (l/D=1)

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