Experimental investigation of the flow and heat transfer of magnetic nanofluid in a vertical tube in the presence of magnetic quadrupole field

摘要

Highlights?Hydrotherml behavior of Fe3O4/water ferrofluid flow has been studied experimentally.?The magnetic fluid has been exposed to magnetic field produced by quadrupole magnets.?Variations of local heat transfer coefficient and pressure drop have been investigated.?Different axial installations positions of the quadrupole magnets have been studied.?Remarkable enhancement in heat transfer coefficients were shown for different cases.AbstractIn this paper, the effects of applying magnetic field on hydrodynamics and heat transfer of Fe3O4/water magnetic nanofluid flowing inside a vertical tube have been studied experimentally. The applied magnetic field was resulted from quadrupole magnets located at dif