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Latin American applied research

Print version ISSN 0327-0793


HINOJOSA PALAFOX, J.F.. Numerical study of the natural convection in a two-dimensional partially open tilted cavity. Lat. Am. appl. res. [online]. 2012, vol.42, n.3, pp.267-274. ISSN 0327-0793.

In this paper the numerical results of temperature profiles and flow patterns for natural convection in a two-dimensional partially open tilted cavity are studied. The cavity holds the opposite wall to the aperture at a constant temperature, while the remaining walls are thermally insulated. The most important assumptions in the mathematical formulation are: the flow is laminar, two-dimensional and the Boussinesq approximation is valid. The results are obtained for Rayleigh numbers from 106 to 108 and inclination angles from 90° to 150°, for the steady state. The comparison between the Nusselt numbers of the fully open cavity and partially open cavity, indicates that the greatest difference is 55.4% (Ra=108 and 135°) and the smallest difference is 4.6% (Ra=106 and 90°), with an average percentage difference of 29%.

Keywords : Natural Convection; Partially Open Cavity.

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