Experimental study of liquid aluminum droplet breakup characteristics based on a Drop-on-demand (DOD) magnetohydrodynamic actuation

doi:10.1016/j.addma.2024.104131

	Experimental study of liquid aluminum droplet breakup characteristics based on a Drop-on-demand (DOD) magnetohydrodynamic actuation
	Tian SW(田生伟)1,2; Sun, SuRong 1; Lin, XiaoChen 1,2; Geng JY(耿金越)3; Huang HJ(黄河激)3 ; Wang, HaiXing1,2 ; Cao JW(曹进文)3 ; Meng X(孟显)3 ; Yan C(闫聪)3
通讯作者	Sun, Su-Rong([email protected]) ; Wang, Hai-Xing([email protected])
发表期刊	ADDITIVE MANUFACTURING
	2024-03-25
卷号	84 页码:13
ISSN	2214-8604
摘要	In magnetohydrodynamic (MHD) drop-on-demand (DOD) actuation, Lorentz force generated in different excitation stages are exerted on the liquid metal jet to form a "push-pull" mechanism, which is crucial for generating accurate and repeatable metal droplets. In this study, the important parameters of the excitation current waveform in the magnetohydrodynamic (MHD) process, including the influence of the excitation voltage pulse width ratio and current amplitude on the velocity, energy, volume, and breakup length of aluminum droplets are studied. The conversion process of surface energy and kinetic energy during the formation and fall stage of liquid droplets is analyzed. The results show that the negative and positive excitation voltage pulse width ratio of the MHD pump has a significant effect on the droplet velocity, breakup time, size, and sphericity. The amplitude of the excitation current and Hartmann number has a significant impact on the generation of stable droplets. The results show that the single droplet ejection state can be achieved within the Ha number between 319.5 and 391.1. As the Ha number increases, the volume, length, kinetic energy and surface energy of the droplets at breakup time also increase. The size of droplets can be adjusted by changing the amplitude of excitation waveform.
关键词	Droplet break up Magnetohydrodynamic (MHD) Drop-on-demand (DOD) Liquid metal 3D printing Additive manufacturing
DOI	10.1016/j.addma.2024.104131
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001229867800001
关键词[WOS]	MOLTEN-METAL DROPLETS ; NOZZLE DIAMETER ; TECHNOLOGY ; DEPOSITION ; SMALLER ; DRIVEN
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Manufacturing ; Materials Science, Multidisciplinary
资助项目	National Natural Science Foundation of China[12175011] ; National Natural Science Foundation of China[12005010] ; National Natural Science Foundation of China[11735004] ; Fundamental Research Funds for the Central Universities[YWF-23-L-1221] ; State Key Laboratory of High -temperature Gas Dynamics, Chinese Academy of Sciences[2021KF08]
项目资助者	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; State Key Laboratory of High -temperature Gas Dynamics, Chinese Academy of Sciences
论文分区	一类
力学所作者排名	3+
RpAuthor	Sun, Su-Rong ; Wang, Hai-Xing
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/95439
专题	高温气体动力学国家重点实验室宽域飞行工程科学与应用中心
作者单位	1.Beihang Univ, Sch Astronaut, Beijing 100191, Peoples R China; 2.Beihang Univ, Ningbo Inst Technol, Ningbo 315800, Peoples R China; 3.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Tian SW,Sun, SuRong,Lin, XiaoChen,et al. Experimental study of liquid aluminum droplet breakup characteristics based on a Drop-on-demand (DOD) magnetohydrodynamic actuation[J]. ADDITIVE MANUFACTURING,2024,84:13.Rp_Au:Sun, Su-Rong, Wang, Hai-Xing
APA	田生伟.,Sun, SuRong.,Lin, XiaoChen.,耿金越.,黄河激.,...&闫聪.(2024).Experimental study of liquid aluminum droplet breakup characteristics based on a Drop-on-demand (DOD) magnetohydrodynamic actuation.ADDITIVE MANUFACTURING,84,13.
MLA	田生伟,et al."Experimental study of liquid aluminum droplet breakup characteristics based on a Drop-on-demand (DOD) magnetohydrodynamic actuation".ADDITIVE MANUFACTURING 84(2024):13.