SciELO - Scientific Electronic Library Online

 
vol.42 número3A new formulation to the shortest path problem with time windows and capacity constraintsA Comparison of slurry and inmobilized TiO2 in the photocatalytic degradation of phenol índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Latin American applied research

versión impresa ISSN 0327-0793

Resumen

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%.

Palabras llave : Natural Convection; Partially Open Cavity.

        · texto en Inglés     · pdf en Inglés