Numerical Simulation of Drop-on-Demand Jetting Process of Metal Droplet Based on Level Set Method

被引：0

作者：

Wang Pengyun ^{[1
]}

Li Hejun ^{[1
]}

Qi Lehua ^{[1
]}

Luo Jun ^{[1
]}

Li Haipeng ^{[1
]}

机构：

[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2013年 / 42卷

关键词：

level set method; two-phase flow; numerical simulation; metal droplet; drop-on-demand jetting;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Metal droplet drop-on-demand (DOD) jetting process involves a two-phase flow accompanied by a free interface. In this paper, a new model based on a level set method (LSM) was developed to investigate the DOD jetting of Al droplets under pulsed argon gas. The effects of the gas pulse width and pulse pressure on the ejected droplet velocity and size were analyzed. The results show that LSM has the excellent capacity of tracking the free interface between the Al droplet and shielding gas. Moreover, the droplet diameter increases linearly with the pulse width. With the rise of the pulse pressure, initial droplet velocity is significantly increased.

引用

页码：520 / 524

页数：5

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