![]() ![]() Many researchers devote themselves to studying this method by using experiments and numerical simulations.Įxperiment is a straightforward way to investigate inkjet printing and receives much attention from researchers. Moreover the printing quality depends directly on the ink droplet formation process. However, these applications come with several serious challenges regarding print quality, as well as the requirements for higher speed and accuracy conjunction with increasingly with small ink droplets. Over the past few decades, inkjet printing technology has been widely used in various emerging industrial applications, including fabricating flexible displays, lab-on-a-chip devices, fuel injection, cell printing, and drug delivery 1, 2, 3. These results indicate that the hydrophilic modification of the nozzle inner wall and the choice of inks with high surface tensions will improve printing quality. In contrast, higher surface tension values promote earlier droplet breakup and faster drop velocity. Increasing the contact angle of the nozzle inner delays the droplet breakup time and reduces the droplet velocity. ![]() It was determined that the wettability of the nozzle inner wall and the surface tension of the ink are vital factors controlling the print quality and speed. This model was subsequently used to investigate droplet formation in piezoelectric inkjet printing. The present model was verified by reproducing the actual single droplet ejection process captured by fast imaging. As a result, the actuation can be accurately controlled by adjusting the intensity and duration of the positive and negative forces, as well as the idle time. In this model, a time-dependent driving force is applied to actuate the droplet ejection. ![]() This paper describes a lattice Boltzmann-based binary fluid model for inkjet printing. ![]()
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