TY - JOUR
T1 - Modeling of natural turbulent flow in a passively heated zone
AU - Uygur, Seyhan
AU - Eǧrican, Nilüfer
PY - 1996/5
Y1 - 1996/5
N2 - In the present study, a modified turbulence model has been developed having the goals of representing the dominant buoyancy effect, and also the low turbulence due to buoyancy and the viscous effects in the vicinity of the wall for a zone heated passively with a Trombe wall, where the magnitudes of aspect ratio and Rayleigh number equal to one and 1010, respectively. Standard viscosity/diffusivity and Daly Harlow approximations for the definition of the scalar quantities are used and compared to each other. The model and the code solving the governing equations may be applied to similar structures, namely, enclosures with aspect ratio about one, having inlet and outlet openings on the heated side. Also, improving the computational convergence and decreasing the computer time are goals of this work.
AB - In the present study, a modified turbulence model has been developed having the goals of representing the dominant buoyancy effect, and also the low turbulence due to buoyancy and the viscous effects in the vicinity of the wall for a zone heated passively with a Trombe wall, where the magnitudes of aspect ratio and Rayleigh number equal to one and 1010, respectively. Standard viscosity/diffusivity and Daly Harlow approximations for the definition of the scalar quantities are used and compared to each other. The model and the code solving the governing equations may be applied to similar structures, namely, enclosures with aspect ratio about one, having inlet and outlet openings on the heated side. Also, improving the computational convergence and decreasing the computer time are goals of this work.
KW - Natural convection
KW - Trombe wall
KW - Turbulence model
UR - http://www.scopus.com/inward/record.url?scp=0000384355&partnerID=8YFLogxK
U2 - 10.1016/0196-8904(95)00215-4
DO - 10.1016/0196-8904(95)00215-4
M3 - Article
AN - SCOPUS:0000384355
SN - 0196-8904
VL - 37
SP - 505
EP - 520
JO - Energy Conversion and Management
JF - Energy Conversion and Management
IS - 5
ER -