An Investigation on Viscosity of La0.6 Sr0.4 MnO3/Water Nanofluid in the Presence of Magnetic Field

In this paper, the impact of the magnetic field on the viscosity of La0.6 Sr0.4 MnO3/water magnetic nanofluid is studied from the experimental point of view. These experiments were carried out in the two following conditions: temperature range of 10–50 °C and the volume fraction of 0–1%. The results showed that with increase in the volume fractions of nanoparticles, the viscosity of the sample increased. Moreover, with increase in the temperature, viscosity decreased in both conditions of the presence and absence of the magnetic field. Furthermore, the viscosity of the magnetic nanofluid increased by increasing the magnetic field. It is therefore concluded that the magnetic field is an effective factor in the viscosity of the magnetic nanofluids, by which magnetic nanofluid flow will be controllable.