Droplet-based Multiphase Flows in Microchannels
Modeling T-Junction Devices with FLOW-3D
In T-Junction devices, 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.
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
This system has microchannels with 50x50 μm2 cross sections and hydrophobic surfaces fabricated using rapid prototyping in polydimethylsiloxane (PDMS).
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.