Finite element based heatline approach to study mixed convection in a porous square cavity with various wall thermal boundary conditions

Numerical study of mixed convection within porous square cavities using Bejan’s heatlines: Effects of thermal aspect ratio and thermal boundary conditions

“…(4), (11) and (12)] with boundary conditions are solved by using Galerkin finite element method [28]. Since the solution procedure is explained in an earlier work [29,30], the detailed description is not included in this paper. The numerical solutions are obtained in terms of velocity components (U, V).…”

Finite element simulations on heatline trajectories for mixed convection in porous square enclosures: Effects of various moving walls

“…The heatline approach has further been used by many researchers to interpret mixed convection heat transport concisely during last decade. A few works on mixed convection within the porous media via the heatline approach are available in the literature [40,41]. Basak et al [40] carried out the heatline based numerical study on mixed convection in a square cavity filled with the fluid saturated porous media for various thermal boundary conditions involving the moving upper wall.…”

“…A few works on mixed convection within the porous media via the heatline approach are available in the literature [40,41]. Basak et al [40] carried out the heatline based numerical study on mixed convection in a square cavity filled with the fluid saturated porous media for various thermal boundary conditions involving the moving upper wall. Ramakrishna et al [41] investigated the heat flow visualization in the porous square cavity for various thermal boundary conditions on the bottom and side walls based on the thermal aspect ratio for the moving top wall.…”

Improved heat insulation system (Mirrorpanel) for construction of wood buildings

“…The absorption number corresponds to the emission number, which is the emitted ratio of thermal energy. The temperature difference and the thickness of the air layer determine the air circulation effect named convection, which can be characterized by the dimensionless numbers of Grashof and Prandtl (Basak et al 2011 ;Ermolaev et al 2011 ;P á sztory et al 2011 ). Inspired by these factors, the concept of the present article was to form narrow air layers with the help of heat-reflecting foils within the wall structure.…”