Analysis Of Heat Transfer With Natural Convection Of Non-Newtonian Fluid Inside An Enclosure With The Hot Obstacle

The Non-Newtonian natural convection heat transfer in the enclosure of hot obstacles has been studied numerically and validated successfully. The streamlines, velocity contours, and heat transfer analysis have been included in the present investigation for various aspect ratios, CMC concentration, obstacles geometry, and enclosure size. The heat transfer performance shows the improvement by rising the Ra and CMC %  for Cuboid obstacle. The cylindrical obstacle shows the different behavior in which the relation between viscous and buoyant forces is discussed. The optimum heat transfer improvement of 86 %  is observed when a cylindrical obstacle is utilized with 1 % CMC. The three-dimensional free convection simulation results have a good agreement with experimental investigation of previous work from the literature.