The Effect of Magnetic field on heat transfer coefficient and relative ‎viscosity of Ferro fluid

Abstract

The heat transfer coefficient of fluids plays a vital role in increasing the thermal efficiency of the fluids. In the meantime, the new technology of Nano fluids has made clear horizons in thermal transfer studies. In this study, the effect of the magnetic field on the coefficient of fluid transfer of the base fluid of distilled water and the fluid containing the magnetic nanoparticles (Fe3O4Water), called frucloid, was investigated. According to the results, the magnetic field does not have any effect on the distilled water fluid, but when the Ferro fluid is used as a fluid, the heat transfer coefficient increases as the field strength increases. Also, by increasing the concentration of magnetic nanoparticles in the fluid, we see an increase in the heat transfer coefficient. In this study, the effect of magnetic field intensity, nanoparticle concentration and field direction on the relative viscosity of the Ferro fluid was also investigated.