Microfluidic Droplet Generation

Microfluidic devices are transforming fields such as drug delivery, biomedical diagnostics, chemical synthesis, and lab-on-a-chip technologies. A key challenge in these systems is generating droplets with precise size, shape, and frequency.

In this study, we investigated droplet generation within a microfluidic T-junction using advanced CFD simulations. By introducing strategically placed semi-cylindrical and V-shaped obstacles, we explored how local flow structures, shear forces, and interfacial dynamics influence droplet pinch-off and breakup behavior.

Using a transient 3D Volume of Fluid (VOF) model in ANSYS Fluent, the team analyzed the evolution of fluid interfaces and flow patterns under different obstacle configurations and flow conditions. The simulations demonstrate how obstacle geometry and placement can significantly improve droplet uniformity, generation frequency, and morphology.

The computational predictions were validated against established benchmark data and showed strong agreement with existing literature. The findings provide valuable insights for designing next-generation microfluidic systems with enhanced control over droplet production 

See our published paper on this ongoing work: https://pubs.aip.org/aip/acp/article/3451/1/100012/3392960/Investigating-droplet-generation-behavior-within-a?guestAccessKey=