ISSN Online: 2377-424X
ISBN Print: 0-85295-345-3
International Heat Transfer Conference 10
NATURAL CONVECTION HEAT TRANSFER IN RECTANGULAR ENCLOSURES WITH PERFECTLY CONDUCTING FINS ATTACHED ON THE HEATED WALL
要約
The natural convection heat transfer in vertical
rectangular enclosures with perfectly conductress
fins attached to the heated wall is numerically
studied. The parameters governing this
problem are the Rayleigh number (102 ≤ Ra ≤ 2 × 105), the aspect ratio of the enclosures (2.5 ≤ A = H'/ L' ≤ 10), the dimensionless lengths of
the partitions (0 ≤ B = l'/L' ≤ 0.75), the aspect ratio of the micro-cavities (C = h'/L' = 0.5) and the Prandtl number (Pr = 0.72). The results indicate that the heat transfer through the cover is considerably affected by the presence of the fins. For a given Ra and A, the heat transfer decreases by increasing B.