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Laminar Natural Convection in a Fully Partitioned Enclosure Containing Fluid with Nonlinear Thermophysical Properties by D.M. Cuckovic-Dzodzo; M.B. Dzodzo; M.D. Pavlovic is a Engineering article available to read on EtoBox.

What is Laminar Natural Convection in a Fully Partitioned Enclosure Containing Fluid with Nonlinear Thermophysical Properties about?

The eects of a heat conducting partition on the laminar natural convection heat transfer and ̄uid ̄ow were obtained by comparing the numerical and experimental results for a cubic enclosure without and with a partition. The two opposite vertical walls of the enclosure were isothermal at dierent temperatures. The working ̄uid was glycerol. The complete vertical partition, made of Plexiglass, was positioned in the middle of the enclosure. The visualizations of the velocity and temperature ®elds were obtained by using respectively, Plexiglass and liquid crystal particles as tracers. A middle plane perpendicular to the partition was numerically modeled. The steady two-dimensional model accounted for the variable thermophysical properties of the ̄uid. The ®nite volume method based on the ®nite dierence approach was applied. The convective terms were approximated using a deferred correction central dierence scheme. The velocity and temperature ®elds and the distribution of the local and average Nusselt numbers were found as a function of the Rayleigh (38 000 <Ra <369 000) and Prandtl (2700 < Pr < 7000) numbers.

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Author

D.M. Cuckovic-Dzodzo; M.B. Dzodzo; M.D. Pavlovic

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0142-727X)

Published

1999

Language

EN

Field

Engineering (Physical Sciences)