Numerical prediction on heat transfer phenomenon in paramagnetic and diamagnetic fluids under a vertical magnetic field gradient

Author

Akamatsu, M. ; Higano, M. ; Takahashi, Y. ; Ozoe, H.

Author_Institution

Fac. of Syst. Sci. And Technol., Akita Perfectural Univ., Japan

Volume

14

Issue

2

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

1674

Lastpage

1681

Abstract

Two-dimensional numerical computations were carried out in order to clarify the effect of magnetic field on paramagnetic and diamagnetic fluids in a vertical cylindrical container with thermal and vertical magnetic field gradients under both gravitational and nongravitational fields. In both gravitational and nongravitational fields, the magnetizing force that was produced by the gradient of magnetic field could be utilized to control the heat transfer rate for paramagnetic and diamagnetic fluids. These phenomena could be successfully explained by visualizing the field of magnetizing force.

Keywords

diamagnetic materials; heat transfer; magnetic fluids; magnetohydrodynamics; numerical analysis; paramagnetic materials; statistical analysis; diamagnetic fluids; gravitational fields; heat transfer phenomenon; magnetic field gradient; magnetizing force; natural convection; nongravitational fields; numerical computations; numerical prediction; paramagnetic fluids; Coils; Containers; Current; Heat transfer; Magnetic fields; Magnetic liquids; Paramagnetic materials; Resistance heating; Thermal conductivity; Thermal force; Diamagnetic fluid; magnetizing force; natural convection; paramagnetic fluid;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2004.831033

Filename

1325126