The role of wettability of nonideal nozzle plate: From drop-on-demand droplet jetting to impact on solid substrate
Zhang L(张磊)1; Ku T(库涛)1; Jia JS(贾敬崧)1; Cheng XD(程晓鼎)1,2
刊名AIChE Journal
2018
卷号64期号:7页码:2837-2850
关键词Wettability Nozzle Plate Inkjet Droplet Formation Lattice Boltzmann Method Drop-on-demand
ISSN号0001-1541
产权排序1
英文摘要

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.

资助项目National Key Research and Development Program of China[2017YFB0306401]
WOS关键词LATTICE BOLTZMANN METHOD ; INKJET ; SIMULATION ; STABILITY ; PRESSURE ; FLOWS
WOS研究方向Engineering
语种英语
WOS记录号WOS:000435077000047
资助机构National KeyResearch and Development Program of China through grant2017YFB0306401
内容类型期刊论文
源URL[http://119.78.100.139/handle/173321/22107]  
专题沈阳自动化研究所_数字工厂研究室
通讯作者Zhang L(张磊)
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
推荐引用方式
GB/T 7714
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.
APA Zhang L,Ku T,Jia JS,&Cheng XD.(2018).The role of wettability of nonideal nozzle plate: From drop-on-demand droplet jetting to impact on solid substrate.AIChE Journal,64(7),2837-2850.
MLA Zhang L,et al."The role of wettability of nonideal nozzle plate: From drop-on-demand droplet jetting to impact on solid substrate".AIChE Journal 64.7(2018):2837-2850.
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