Viscosity of hybrid nanofluids: Measurement and comparison

Abstract

The authors aimed to look into the consequence of shearing time on viscosity for various hybrid nanofluids at different temperatures. The preferred hybrid nanofluids are (80% CeO2+20% Cu), (80%Al2O3+20%Cu), (80%TiO2+20%Cu) and (80% SiO2+20%Cu). The results exhibit that the viscosity of innumerable nanofluids, in addition to the base fluid, decreased as the temperature step up and increases with an add to volume fraction of nanoparticle. Additionally, nanofluids show signs of Newtonian individuality in all the investigated ranges of temperature and volume fractions. The rheological behavior of hybrid nanofluids, being an imperative quality in its application might be beneficial in perceptive viscosity profile of any nanofluid, whether changeable or invariable with shear rate. The augmentation of viscosity is pragmatic to be 52.8%,36.9%, 43.2% and 38.6% over the viscosity of base fluid (water) at the 3.0% vol. for (80%CeO2+20%Cu),(80%Al2O3+20%Cu),(80%TiO2+20%Cu)and(80%SiO2+20%Cu) hybrid nanofluids. Contemporary investigational measurements were judge against with existing literature carried out by various researchers and various models for viscosity of nanofluids. There is dissimilarity between investigational hybrid viscosities of nanofluids compared with the hypothetical values as reported by quite a lot of researchers.