流体体积法
下降(电信)
材料科学
沉积(地质)
机械
跌落冲击
计算机模拟
基质(水族馆)
坠落(事故)
熔融金属
复合材料
冶金
分手
机械工程
润湿
工程类
物理
地质学
古生物学
海洋学
环境卫生
生物
医学
沉积物
作者
Peng Yun Wang,He Jun Li,Lehua Qi,Hai Liang Deng,Han Song Zuo
出处
期刊:Advanced Materials Research
日期:2012-06-01
卷期号:538-541: 890-894
被引量:2
标识
DOI:10.4028/www.scientific.net/amr.538-541.890
摘要
Droplet deposition and solidification is vital to dimensional accuracy and mechanical properties of components prepared by uniform droplet spray (UDS) forming. In this paper, a volume-of-fluid (VOF) based model was developed to study the deposition and solidification processes of a 1 mm Al-4.5%Cu droplet generated by drop-on-demand jetting. The effects of droplet falling velocity (0.6-0.8 m/s), initial temperature (933-973 K), and substrate temperature (300-473 K) were investigated. The results show that the final morphology of the deposited droplet is largely dependent on falling velocity and substrate temperature. The solidified droplet obtained from an UDS experiment validates the numerical simulation.
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