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T-Junction Devices

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.

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Simulation of Droplet and Bubble Dynamics in Microfluidic Devices

 

Comparison of FLOW-3D numerical simulation results 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
Schematic of a T-junction device that can be modeled with FLOW-3D
This system has microchannels with 50x50 μm2 cross sections and hydrophobic surfaces fabricated using rapid prototyping in polydimethylsiloxane (PDMS).
Flow simulation of the mixing pattern of Reagent AFlow simulation of the mixing pattern of 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.