Abstract
The influence of triangular surface corrugations on the mixed convection characteristics in a tall lid-driven cavity for non-Newtonian power-law fluids is reported. In particular, numerical experimentations are executed for a range of parameters, such as aspect ratio of cavity, number of triangular corrugations, Richardson numbers, Prandtl numbers (Pr), power-law indexes, and at a constant Grashof number. The corrugation number seems to be the maximum impact for higher Prandtl number fluids. For taller cavities, higher Nusselt number values were obtained for Pr = 100. Triangular corrugations showed a modest change in the heat transfer augmentation in most of the considered parameters.
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