Absrtact Numerical investigation of free convection heat transfers in an attic shaped enclosure with differentially heated two inclined walls and filled with air is performed in this study. The left inclined surface is uniformly heated whereas the right inclined surface is uniformly cooled. There is a heat source placed on the right side of the bottom surface. Rest of the bottom surface is kept as adiabatic. Finite volume based commercial software ANSYS 15 (Fluent) is used to solve the governing equations. Dependency of various flow parameters of fluid flow and heat 0.2 to 0.6, heater position from 0.3 to 0.7 and aspect ratio from 0.2 to 1.0 with a fixed transfer is analysed including Rayleigh number, Ra ranging from 103 to 106, heater size from Prandtl number of 0.72. Keywords: Natural convection, attic shape, numerical modelCite this Article Akshendra Soni, Ajay Kumar. Investigation of free convection heat transfers in an attic shaped enclosure. Journal of Refrigeration, Air Conditioning, Heating and Ventilation. 2017; 4(2): 13–26p.
