Experimental Investigation on Viscosity of Nanofluids

Abstract:

The effects due to fluid pH and dispersant concentration on the dynamic viscosity for the Al₂O₃–water and TiO₂–water nanofluids had been experimentally investigated. The viscosity of the two kinds of nanofluids was measured using capillary viscometers. The experimental results showed that there exists an optimized value of pH (pH≈8.0) at which the viscosities of the two nanofluids take their minima values. The experimental results also showed that the influence of dispersant concentration on the viscosity of Al₂O₃–water suspension was relatively large comparing with that of the TiO₂–water nanofluid, and the dispersion of alumina powder is poorer than that of titanium dioxide powder at the same pH value and same mass fraction.

• Periodical: Advanced Materials Research (Volume 650)
• Pages: 134-138
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.650.134
• Online since: January 2013
• Authors: Xian Ju Wang, Zhou Fei Wang, Zheng Zhang Li
• Keywords: Capillary Viscometer, Kinematic Viscosity, Nanofluid

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