Thermophysical Properties of Magnetic Fluid and Heat Transfer by Natural Convection in a Horizontal Enclosed Retangular Container under a Vertical Magnetic Field

Abstract

Thermophysical properties of magnetic fluid (solvent, water; nanoparticulates, Mn–Zn ferrite) were elucidated in order to examine their temperature dependency in both non-magnetic and vertical magnetic fields. Heat transfer by natural convection was also investigated in a horizontal enclosed rectangular container whose bottom plate was heated uniformly in both non-magnetic and vertical magnetic fields in order to estimate the heat transfer characteristics. The results showed that the heat transfer of magnetic fluid in a horizontal enclosed rectangular container increases with increasing magnetic flux density.