CFD-based numerical modeling to predict the dimensions of printed droplets in electrohydrodynamic inkjet printing

Electrohydrodynamic (EHD) inkjet printing is a type of potential non-contact micro/nanoscale manufacturing technology. The printed droplet dimension plays an important role in EHD due to its significant influence on quality and the resolution patterns. complexity mechanism limited process optimization techniques present challenge obtaining desired resolution, eventually becoming expensive time consuming endeavor. Recent developments computational fluid dynamics (CFD) bring effective alternative alleviate aforementioned challenges. In this study, CFD model proposed investigate cone-jet printing. complete successfully simulated with four phases: Taylor cone formation, generation, jet break expansion. A further analysis predicts jetting diameter different operating parameters substrates. simulation has satisfactory agreement experiments predicting behavior (jetting diameter, diameter). Such advancement modeling can be utilized guide quick determination operation for when given new ink.