Journal
APPLIED SCIENCES-BASEL
Volume 11, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/app11020527
Keywords
drop-on-demand inkjet; printing nozzle; droplet; measurement of droplet trajectory; COMSOL
Categories
Funding
- Vilnius Gediminas Technical University (VGTU)
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The study utilized numerical simulation and analysis to investigate the motion and morphology changes of an ink droplet ejected through a nozzle, as well as its suitability for inkjet printhead nozzles, including velocity, size variations, and recommendations for specific inks.
The numerical simulation and analysis of the ejection of an ink droplet through a nozzle as well its motion through air until its contact with a surface and taking up of a stable form is performed. The fluid flow is modeled by the incompressible Navier-Stokes equations with added surface tension. The presented model can be solved using either a level set or a phase field method to track the fluid interface. Here, the level set method is used to determinate the interface between ink and air. The presented work concentrates on the demonstration how to check the suitability of ink for inkjet printhead nozzles, for instance, for the use in printers. The results such as velocity, change of size, and volume dependence on time of an ink droplet are presented. Recommendations for the use of specific inks are also given.
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