A boundary element method to predict the shape of a molten metal free surface in EM confinement field

Author

Lavers, J.D. ; Ahmed, M.Ramadan

Author_Institution

Dept. of Electr. Eng., Toronto Univ., Ont., Canada

Volume

24

Issue

6

fYear

1988

fDate

11/1/1988 12:00:00 AM

Firstpage

2521

Lastpage

2523

Abstract

An iterative procedure to predict the equilibrium shape of a molten-metal free surface in an electromagnetic confinement field is developed. An impedance boundary condition (IBC) formulation forms the computational core of the procedure, in which a balance of electromagnetic and gravitational pressures is sought. The method is used to predict the shape of the molten-metal free surface in a crucible induction furnace. The formulation is described, and results showing the very close agreement with measured free surface contours are presented. The effects of supply frequency, mass density, and free level within the furnace and considered

Keywords

boundary-elements methods; electric furnaces; induction heating; EM confinement field; EM pressure; IBC; boundary element method; crucible induction furnace; electromagnetic confinement field; free level effects; free surface contours; free surface shape prediction; gravitational pressure; impedance boundary condition; iterative procedure; mass density effects; molten metal free surface; supply frequency effects; Boundary element methods; Casting; Conductors; Electromagnetic fields; Force control; Furnaces; Levitation; Navier-Stokes equations; Shape control; Skin;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.92161

Filename

92161