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题名:
The role of wettability of nonideal nozzle plate: From drop-on-demand droplet jetting to impact on solid substrate
作者: Zhang L(张磊); Ku T(库涛); Jia JS(贾敬崧); Cheng XD(程晓鼎)
作者部门: 数字工厂研究室
通讯作者: Zhang L(张磊)
关键词: wettability ; nozzle plate ; inkjet ; droplet formation ; lattice Boltzmann method ; drop-on-demand
刊名: AIChE Journal
ISSN号: 0001-1541
出版日期: 2018
卷号: 64, 期号:7, 页码:2837-2850
收录类别: EI
EI收录号: 20182405314836
产权排序: 1
项目资助者: National KeyResearch and Development Program of China through grant2017YFB0306401
摘要: The dynamics of drop-on-demand (DoD) droplet formation and subsequently impact on the solid substrate are investigated using a three-dimensional (3-D) multirelaxation-time (MRT) pseudopotential lattice Boltzmann (LB) model. The wettability of nonideal nozzle plate and solid substrate is modeled by a geometric scheme within the LB framework. The dynamics of droplet formation are explored in a range of the inverse of Ohnesorge number Z=4.95, 11.57, and 28.17, and the Reynolds number Re=39.6, 58.9,, and 136.4. For Z=4.95, no satellite droplet is observed and the wettability of nozzle plate greatly influences the velocity and length of jetting fluids. For Z=11.57, the filament breakup and recombination are observed. The moment of filament breakup is delayed with advancing contact angle For θAincreasing. For Z=28.17 with Re=136.4, the primary and satellite droplets could not be recombined with θA=30º and θA=90º which agree with the literature. Whereas with θA=90º, the recombination occurs. The dynamics of subsequent oscillating droplet impact on the substrate are similar to that of equilibrium droplet which could obtain high-resolution printed features. Consequently, considering θA=90º with large Z and Re numbers, the printable range could be extended which could help increase the printing frequency and boost the production outputs of inkjet printing.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.sia.cn/handle/173321/22086
Appears in Collections:数字工厂研究室_期刊论文

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作者单位: 1.Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
2.University of Chinese Academy of Sciences, Beijing 100049, China

Recommended Citation:
Zhang L,Ku T,Jia JS,et al. The role of wettability of nonideal nozzle plate: From drop-on-demand droplet jetting to impact on solid substrate[J]. AIChE Journal,2018,64(7):2837-2850.
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