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

doi:10.12066/j.issn.1007-2861.1815

Abstract

Abstract:

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.

Key words: high frequency amplitude-modulated electromagnetic field, metal drop, levitated oscillation, numerical simulation, spectrum analysis

CLC Number:

O361

ZHU Hongda, LEI Zuosheng, GUO Jiahong. Numerical simulation on characteristics of levitated oscillating liquid metal drop in high frequency amplitude-modulated electromagnetic field[J]. Journal of Shanghai University（Natural Science Edition）, 2018, 24(2): 249-256.

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References 15

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Numerical simulation on characteristics of levitated oscillating liquid metal drop in high frequency amplitude-modulated electromagnetic field

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