Nanofluid is a dilute suspension of particles, varying in size from 1 nm to 100 nm, suspended in a base fluid (e.g. water). Compared to base fluids, nanofluids distinctively possess superior thermophysical attributes like thermal conductivity, specific heat capacity. Hence, they can be utilized for their enhanced thermophysical properties in the narrow confinements, like heat pipes and cooling components of electronic devices where appreciable temperature differences prevail. The principal length scale of such confinements lies in the range of microns....