Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7051883 | Experimental Thermal and Fluid Science | 2018 | 11 Pages |
Abstract
The obtained experimental results show maximum enhancements of 23.4%, 37.9% and 48.9% in the local heat transfer coefficient for the magnetic nanofluid with 2â¯vol% Fe3O4 in the presence of the quadrupole magnets located at three different axial installation positions for the Reynolds number of 580 and the relative increase in total pressure drop by applying the magnetic field is about 1% for Re = 580. The increase of the heat transfer coefficient is due to the radial magnetic force toward the heated wall generated by magnetic quadrupole field acting over the ferrofluid flowing inside the tube so that the velocity of the ferrofluid in the vicinity of the heated wall is increased. It is also observed that the enhancement of heat transfer coefficient by applying magnetic quadrupole is decreased with increasing the Reynolds number.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Sajjad Ahangar Zonouzi, Rahmatollah Khodabandeh, Habibollah Safarzadeh, Habib Aminfar, Yuliya Trushkina, Mousa Mohammadpourfard, Morteza Ghanbarpour, German Salazar Alvarez,