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Heat Transfer Research
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ISSN Imprimir: 1064-2285
ISSN On-line: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v31.i6-8.200
pages 521-528

Natural Convection of Water in a Closed Three-Dimensional Rectangular Cavity Heated from Below Near the Point of Density Inversion

S. P. Rodionov
Tumen Branch of the Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Sciences, Tumen, Russia

RESUMO

Natural convection of water in a closed three-dimensional rectangular cavity heated from below at about 4°C is studied numerically on the basis of the Navier-Stokes equations in the Boussinesq approximation with account for the dependence of thermophysical parameters on temperature. Main forms of stationary convective flows are found. The effect of geometric dimensions of the cavity on the process of heat transfer is studied. The results of calculations are compared to the solutions obtained on the basis of two-dimensional equations of fluid flow.


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