NATURAL CONVECTION IN PARTITIONED ENCLOSURES WITH LOCALIZED HEATING

International Journal of Numerical Methods for Heat and Fluid Flow - Tập 3 Số 2 - Trang 133-143 - 1993
E.NTIBARUFATA1, M.HASNAOUI1, E.BILGEN1, P.VASSEUR1
1Departement de Mécanique, Ecole Polytechnique, CP 6079, St A, Montréal, PQ, H3C 3A7, Canada

Tóm tắt

The aim of the present investigation was to study numerically the natural convection in partitioned enclosures with localized heating from below. Two‐dimensional equations of conservation of mass, momentum and energy, with the Boussinesq approximation are solved using finite difference method. Various geometrical parameters were: aspect ratio A = 0.4−0.6, isothermal surface length B = 0.5, its position C = 0.3, partition position D = 0.5−1.0, its length E = 0.2−0.6, heat source length X = 0.05−1.00, and its position ε = variable. The Rayleigh number was varied from 103 to 106. The results are reduced in terms of the normalized Nusselt number as a function of the Rayleigh number, and other non‐dimensional geometrical parameters. The isotherms and streamlines are produced for various Rayleigh numbers and geometrical conditions.

Từ khóa


Tài liệu tham khảo

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Thông tin
Thông tin xuất bản

International Journal of Numerical Methods for Heat and Fluid Flow

Tập 3 Số 2

133-143

Thông tin tác giả