Abstract
Abstract An analysis is carried out to investigate the heat transfer in a turbulent recirculatory flow affected by buoyancy forces. Transport equations for turbulence kinetic energy, energy dissipation Tate and mean square temperature fluctuations are derived and solved numerically together with the mass, momentum and energy conservation equations. The flow pattern and temperature distribution are shown for different Reynolds numbers. The buoyancy effect on flow pattern and temperature distribution is analyzed. Mean Nusselt numbers, with and without buoyancy effect are presented. Turbulence characteristics such as turbulence kinetic energy and effective viscosity arc discussed.
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