Journal of Shanghai University(Natural Science Edition) ›› 2021, Vol. 27 ›› Issue (5): 879-890.doi: 10.12066/j.issn.1007-2861.2201

• Research Articles • Previous Articles     Next Articles

Three-dimensional numerical simulations of suspended metal droplet oscillations in high-frequency, amplitude-modulated, alternating electromagnetic fields

LIAN Jingjie1, GUO Jiahong1(), LEI Zuosheng2   

  1. 1. Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China
    2. State Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai 200444, China
  • Received:2019-11-02 Online:2021-10-31 Published:2021-10-22
  • Contact: GUO Jiahong E-mail:jhguo@staff.shu.edu.cn

Abstract:

A three-dimensional numerical model for the oscillations of suspended metal droplets in a high-frequency, amplitude-modulated electromagnetic field is built. Numerical simulations of a suspended metal droplet oscillating in the high-frequency, amplitude-modulated electromagnetic field are also performed. The high-frequency, amplitude-modulated electromagnetic field and the flow of the liquid metal droplet are simulated via the finite element method. The free surface of the liquid metal droplet is calculated using the arbitrary Lagrange-Euler (ALE) method. The high-frequency, amplitude- modulated electromagnetic field; the flow of the liquid metal droplet; and the free surface of the oscillating droplet are determined numerically. The shape of the oscillating droplet, as obtained via the numerical simulation, is in good agreement with the experimental results. Furthermore, frequency analyses based on the numerical results of the oscillation of the droplet are in good agreement with the theoretical calculations.

Key words: high frequency amplitude modulated electromagnetic field, metal droplet, suspension oscillation, numerical simulation

CLC Number: