Effect of aspect ratio on natural convection in attics subject to periodic thermal forcing

Saha, S.C., Lei, C., and Patterson, J.C. (2007) Effect of aspect ratio on natural convection in attics subject to periodic thermal forcing. ANZIAM Journal, 48. pp. 677-691.

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Abstract

We consider the heat transfer through the attics of buildings under realistic (periodic) thermal forcing. The objective of this study is to investigate numerically the effect of the aspect ratio (height to base ratio) on the heat transfer through the attics. A fixed Grashof number 1.33 x 10^6 is considered for three different aspect ratios 0.2, 0.5 and 1.0. The Prandtl number is also fixed at 0.71 for air. The details of the numerical model as well as the flow structures and heat transfer data are presented.

Item ID: 2253
Item Type: Article (Refereed Research - C1)
Keywords: natural convection; heat transfer; buoyancy; fluid mechanics; attics; periodic forcing
Additional Information:

ISSN: 1446-8735
Date Deposited: 10 Jun 2009 23:15
FoR Codes: 09 ENGINEERING > 0915 Interdisciplinary Engineering > 091504 Fluidisation and Fluid Mechanics @ 60%
09 ENGINEERING > 0915 Interdisciplinary Engineering > 091505 Heat and Mass Transfer Operations @ 30%
09 ENGINEERING > 0915 Interdisciplinary Engineering > 091508 Turbulent Flows @ 10%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970102 Expanding Knowledge in the Physical Sciences @ 100%
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