Experimental and Theoretical Investigation of Viscosity of Oxide Nanoparticles Dispersed in Different Carrier Medium

Abstract

The main aim of this research work is to find the viscosity of the aluminium oxide, copper oxide and titanium dioxide nanoparticles at fixed shear rate of 100 s–1 at different values of temperature for fixed and varying concentration. For accomplishing the work, the practical set up used was Rheometer of Anton Paar Series. It was found that viscosity was increasing with the increased percentage of nanoparticles in the main base fluid as deionised water (DIW), engine oil (EO) and ethylene glycol (EG). Furthermore, the viscosity was noticed to be decreasing when the tempera- ture increases, this is because of decrease in the intermolecular forces. The relative viscosity was found experimentally and compared with the already existing models given by various researchers. The Masoumi model was found to satisfy the experimental data more closely under predicting the Einstein model, Brinkman model, Wang model and Batchelor model.