Numerical visualization via heatlines for natural convection in porous bodies of rhombic shapes subjected to thermal aspect ratio-based heating of walls

Abstract

Visualization of heat flow and trajectories has been employed during buoyancy induced (natural) convection within porous rhombic 2D cavities of different base angles involving various intensities of the thermal state of the bottom wall via tuning thermal aspect ratios (A_r). The thermal mixing effect at the core, heat transport rates at side walls and heat supply rate by the bottom wall have been elucidated at various limits of Pr and A_r for low and high Darcy number regimes. The heatline tool has been found to be indispensable to analyze the convection heat transport at various locations and trajectories of heat propagation from the hot zone to cooler zone of walls involving various scenarios.