收稿日期: 2016-05-17
网络出版日期: 2018-05-07
基金资助
国家自然科学基金资助项目(11372174);国家自然科学基金资助项目(51274137)
Numerical simulation on characteristics of levitated oscillating liquid metal drop in high frequency amplitude-modulated electromagnetic field
Received date: 2016-05-17
Online published: 2018-05-07
朱宏达, 雷作胜, 郭加宏 . 高频调幅交变电磁场中金属液滴悬浮振荡特性的数值模拟分析[J]. 上海大学学报(自然科学版), 2018 , 24(2) : 249 -256 . DOI: 10.12066/j.issn.1007-2861.1815
Based on the experiment results of oscillation of a levitated liquid metal drop in a high frequency amplitude-modulated electromagnetic field, a two-dimensional axisymmetric numerical model for the flow of the drop is developed. The arbitrary Lagrangian-Eulerian (ALE) method is used to calculate free surface of the oscillating drop. The magnetic field, the flow field and the shape of the free surface of the droplet oscillating in a high frequency amplitude-modulated electromagnetic field are obtained by numerical simulation. By analyzing displacement of the characteristic point on the oscillating droplet over time using Fourier analysis, frequency spectrum characteristics of the drop in a high frequency amplitude-modulated electromagnetic field is obtained. Numerical results agree fairly well with the experimental and theoretical results.
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