Numerical Analysis on Lorentz Force Field in φ160 Billet under Harmonic Magnetic Field

摘要

A method was developed to quantitatively describe the time-varying Lorentz force field induced in billet under harmonic magnetic field.Based on the numerical analysis of the Lorentz force,the numeral features were concluded,which comprised of the mean force,the maximum force,the long axis,short axis and rotation direction of ellipse,the phase difference index,and so on.Using this method,the Lorentz force field in φ 160 billet under 3 Hz harmonic magnetic field were analyzed.