TY  - EJOU
AU  - Bourega, Mohammed 
AU  - Kromba, Ibrahim 
AU  - Arbi, Khadidja Fellah 
AU  - Soulimane, Sofiane 

TI  - Effect of Velocity Ratio, Viscosity Ratio, Contact Angle, and Channel Size Ratio on Droplet Formation
T2  - Fluid Dynamics \& Materials Processing

PY  - 2023
VL  - 19
IS  - 10
SN  - 1555-2578

AB  - This study uses a T-junction to examine the effects of different parameters (velocity ratio, viscosity, contact angle, and channel size ratio) on the generation of microdroplets, related rate, and size. More specifically, numerical simulations are exploited to investigate situations with a velocity varying from 0.004 to 1.6 m/s for the continuous phase and from 0.004 to 0.8 m/s for the dispersed phase, viscosity ratios (0.668, 1, 6.689, 10, 66.899), contact angle 80° < θ < 270° and four different canal size ratios (1, 1.5, 2 and 4). The results show that canal size influences droplet size and the generation rate. The contact angle has an impact on the form and the quality of generated droplets. Moreover, the relationship between velocity and viscosity ratios, droplet size, and generation rate is non-monotonic.
KW  - Microfluidics; T-junction droplet generator; droplet size; droplet diameter; generation rate

DO  - 10.32604/fdmp.2023.028661