ISSN:
0961-5539
Source:
Emerald Fulltext Archive Database 1994-2005
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Numerical computations were performed for the heat transfer and fluid flow characteristics of natural convection with an internal vertical channel composed by a pair of parallel plates in a rectangular enclosure. The inner plates and the bounding wall of the enclosure were maintained at uniform but different temperatures. The plates were symmetrically arranged. Unsteady computation was performed to simulate the evolution process of the natural convection developing from the zero initial field. The cases of Ra = 2 × 104, 2 × 105 and 106 were studied. A symmetrical steady solution was achieved for the case of Ra = 2 × 104. For Ra = 2 × 105 and 106, time dependent asymmetrical processes were observed. The flow oscillating process seemed to be more complex at Ra = 2 × 105 than that at Ra = 106, which is quasi-periodic with two frequencies.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1108/09615539910256027
Permalink