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 , , and , and the Reynolds number , , and . For , no satellite droplet is observed and the wettability of nozzle plate greatly influences the velocity and length of jetting fluids. For , the filament breakup and recombination are observed. The moment of filament breakup is delayed with advancing contact angle increasing. For with , the primary and satellite droplets could not be recombined with and which agree with the literature. Whereas with , 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 with large and numbers, the printable range could be extended which could help increase the printing frequency and boost the production outputs of inkjet printing. © 2018 American Institute of Chemical Engineers AIChE J, 64: 2837–2850, 2018

中文翻译：

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非理想喷嘴板的润湿性的作用：从按需滴滴喷射到对固体基材的冲击

使用三维（3D）多重松弛时间（MRT）伪势格玻尔兹曼（LB）模型研究了按需滴（DoD）液滴形成以及随后对固体基质的影响的动力学。非理想喷嘴板和固体基材的润湿性通过LB框架内的几何方案建模。液滴形成的动力学进行了探索的范围奥内佐格数倒数的，和，和雷诺数 ，和。对于，没有观察到卫星滴，喷嘴板的润湿性极大地影响了喷射流体的速度和长度。为了，观察到细丝破裂和重组。细丝断裂的时刻随着前进接触角的增加而延迟。对于用，初级和卫星液滴可能不与重组和其与文献一致。而使用，则发生重组。随后振荡的液滴撞击基材的动力学与平衡液滴的动力学相似，可以获得高分辨率的印刷特征。因此，考虑到数量和数量，可以扩大可打印范围，这可以帮助增加打印频率并提高喷墨打印的产量。©2018美国化学工程师学会AIChE J，64：2837–2850，2018