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Viscosity of two nanofluid samples, and pure PG, as a function of shear rate. The lack of dependence on shear rate shows that the nanofluids are Newtonian.
Viscosity of various nanofluid samples vs the nanoparticle diameter, showing that the nanofluid viscosity is not a strong function of nanoparticle diameter.
Relative viscosity of various nanofluids vs temperature, showing that unlike nanofluid thermal conductivity, the relative viscosity is independent of temperature.
Relative nanofluid viscosity vs volume fraction, showing that the relative viscosity is a strong function of the nanofluid volume fraction.
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