Droplet-based Multiphase Flows in Micro channel

T-Junctions

In T-Junctions, the disperse phase and the continuous phase are injected from two branches of the “T.” Droplets of the disperse phase are produced as a result of the shear force and interfacial tension at the fluid–fluid interface.

Example of a T-junction
This system has microchannels with 50x50 μm2 cross sections and hydrophobic surfaces fabricated using rapid prototyping in polydimethylsiloxane (PDMS).


Comparison with experimental results
Comparison of FLOW-3D results with experimental results taken from Helen Song, Joshua D. Tice, and Rustem F. Ismagilov, "A Microfluidic System for Controlling Reaction Networks in Time," Angewandte Chemie International Edition 20003, 42 , No.7

Reagent A Reagent B
Formation of uniform droplets out of multiple aqueous streams. The left animation shows the mixing pattern of reagent A; The right animation shows the mixing pattern of reagent B.