Abstract

Two-dimensional laminar natural convection heat transfer in slender rectangular cavities equipped with two small vertical partitions, located in the middle of horizontal walls, is studied numerically. The evaluations are carried out for cavity aspect ratios up to 45 and for Grashof numbers, based on the cavity height, up to 5 × 10 8. As shown, for this range of aspect ratios and Grashof numbers, two small vertical partitions of the same length, made of glass and located in the mid-plane of the cavity, may reduce the cavity mean as well as peak Nusselt numbers by up to 6 and 27 percent, respectively.

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