Application of Cylindrical Fin to Improve Heat Transfer Rate in Micro Heat Exchangers Containing Nanofluid under Magnetic Field

In this study, the convective mode heat transfer phenomena of bi-phase elasticoviscous (non-Newtonian) nanofluid is quantified by forcefully flowing it through a specially designed microchannel test section. The section, which rectangularly cross-sectioned and annexed internally with cylindrical needle ribs numerically investigated considering walls to be maintained at constant temperature, susceptible magnetizing force field. governing system-state equations are deciphered using control volume procedure SIMPLEC algorithm. With Reynolds number (Re) varying in turbulent range from 3000 11,000, solved Eulerian–Eulerian monofluid Two-Phase Model (TPM). For purpose achieving an apt geometry based on best thermo-hydraulic behavior, optimization study must mandatory. rib consists h (10 × 10−3, 15 20 10−3), p (1.0, 1.5), d (8 10 12 which, respectively, defines height, pitch, diameter obstacles, dimensions placed within braces being mm. results demonstrated that magnetic field leads enhanced amount average Nusselt (Nuav) contrast occurrence B = 0.0. This due pushes nanoparticles towards bottom wall. It was found 0.5 T has maximum compared other fields. channel μm height value Nuav all studied Re for values h. 1.5 8 μm, presence present work.