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Title: Flow field and Reynolds stress distribution in low turbulance natural convection in a triangular cavity
Authors: Talabi, SO
Olunloyo, VOS
Kamiyo, OM
Collins, MW
Karayiannis, TG
Keywords: Turbulence
Natural convection
Triangular cavities
Publication Date: 2006
Publisher: ICHMT Digital Library Online, Vol.10 Issue 1 '2006 pp 511-514
International Centre for Heat and Mass Transfer
Citation: The International Symposium on Turbulence, Heat and Mass Transfer, Dubrovnik, Croatia, September 25 - 29, 2006
Abstract: Triangular enclosures are typical configurations found in attic spaces of residential as well as industrial pitched-roof buildings. Previous studies on airflow within such spaces have focused on the laminar range. A numerical study has been carried out for time-dependent, two-dimensional low turbulence natural convection of air contained in the attic of a pitched roof of triangular cross-section. Two sets of boundary conditions have been considered: enclosure heated from the inclined walls and from the horizontal base wall, for aspect ratios (AR) of 0.33 ≤ AR ≤ 1.73 for Rayleigh number (Ra), 109 ≤ Ra ≤ 1011. In this paper, the flow field and Reynolds stress distribution are presented for the isothermal and isoflux cases.
ISSN: 961-91393-0-5
Appears in Collections:Mechanical and Aerospace Engineering
Dept of Mechanical Aerospace and Civil Engineering Research Papers

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