Flow Field and Reynolds Stress Distribution in Low Turbulence Natural Convection in a Triangular Cavity
نویسنده
چکیده
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 crosssection. 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), 10 9 Ra 10 11 . In this paper, the flow field and Reynolds stress distribution are presented for the isothermal and isoflux cases.
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