TY - JOUR
T1 - Effect of non-uniform magnetic fields on the characteristics of ferrofluid flow in a square enclosure
AU - Lee, Myoungwoo
AU - Kim, Youn Jea
N1 - Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government ( MSIT ) (No. NRF-2017R1D1A1B03036263 ).
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2020/7/15
Y1 - 2020/7/15
N2 - The importance of heat management has been emphasized in various industrial fields and cooling technology of efficiently removing heat is required. The natural convection of a fluid-filled enclosure is being applied in applications such as heat exchangers, solar energy collection, and electronics cooling. In this study, when the same heat source was applied, velocity, temperature, magnetic Rayleigh number, and local Nusselt number in the enclosure were analyzed according to the magnetic field strength and obstacles. The highest heat transfer performance was obtained at 2000 kA/m of rhombus and magnetic field strength. Finally, the optimum point that has a higher heat transfer rate than the reference model was derived by modifying the strength of the magnetic field.
AB - The importance of heat management has been emphasized in various industrial fields and cooling technology of efficiently removing heat is required. The natural convection of a fluid-filled enclosure is being applied in applications such as heat exchangers, solar energy collection, and electronics cooling. In this study, when the same heat source was applied, velocity, temperature, magnetic Rayleigh number, and local Nusselt number in the enclosure were analyzed according to the magnetic field strength and obstacles. The highest heat transfer performance was obtained at 2000 kA/m of rhombus and magnetic field strength. Finally, the optimum point that has a higher heat transfer rate than the reference model was derived by modifying the strength of the magnetic field.
KW - Ferrofluid
KW - Magnetic flux density
KW - Magnetic nanoparticle
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U2 - 10.1016/j.jmmm.2020.166697
DO - 10.1016/j.jmmm.2020.166697
M3 - Article
AN - SCOPUS:85082386374
SN - 0304-8853
VL - 506
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
M1 - 166697
ER -