Modeling the dynamics of magnetic semilevitation melting

被引：48

作者：

Bojarevics, V ^{[1
]}

Pericleous, K ^{[1
]}

Cross, M ^{[1
]}

机构：

[1] Univ Greenwich, Sch Math, London SE10 9LS, England

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2000年 / 31卷 / 01期

关键词：

D O I：

10.1007/s11663-000-0143-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In semilevitation melting, a cylindrical metal ingot is melted by a coaxial a.c. induction coil. A water-cooled solid base supports the ingot, while the top and side free surface is confined by the magnetic forces as the melting front progresses. The dynamic interplay between gravity, hydrodynamic stress, and the Lorentz force in the fluid determines the instantaneous free surface shape. The coupled nonstationary equations for turbulent flow, heat with phase change, and high-frequency electromagnetic field are solved numerically for the axisymmetric time-dependent domain by a continuous mesh transformation, using a pseudospectral method. Results-are obtained for the two actually existing coil configurations and several validation cases.

引用

页码：179 / 189

页数：11

共 36 条

[1]

[Anonymous], FUNDAMENTALS TURBULE

[2]

[Anonymous], 1989, CHEBYSHEV FOURIER SP

[3]

BHAMIDIPATI JR, 1991, MAGNETOHYDRODYNAMICS IN PROCESS METALLURGY, P69

[4]

BHAMIDIPATI JR, 1995, THESIS U ALABAMA TUS