Simulation of Hydrostatical Equilibrium of Ferrofluid Subject to Magneto-static Field

Author

Choi, Hong Soon ; Kim, Young Sun ; Kim, Kwang Tae ; Park, Il Han

Author_Institution

Sch. of Electron. & Electr. Eng., Kyungpook Nat. Univ., Sangju

Volume

44

Issue

6

fYear

2008

fDate

6/1/2008 12:00:00 AM

Firstpage

818

Lastpage

821

Abstract

In this paper, a numerical scheme for obtaining ferrofluid shape formation is presented using the revisited Kelvin´s force formula. The formula adopts the newly appreciated field intensity from the original Kelvin´s concept and the virtual air gap scheme. For the hydrostatic equilibrium subject to magneto-static field, both electromagnetic and gravitational body forces should be considered. The free surface profile of ferrofluid can be obtained through numerical iterations based on the fact that the pressures on the free surface should be the same. Test models are presented as validations of the proposed scheme.

Keywords

electromagnetic forces; hydrostatics; iterative methods; magnetic fluids; Kelvin force formula; electromagnetic forces; ferrofluid shape formation; field intensity; gravitational body forces; hydrostatic equilibrium; magneto-static field; numerical iterations; virtual air gap scheme; Ferrofluid; Kelvin´s formula; hydrostatics; magnetic body force; virtual air gap;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2007.915962

Filename

4526825