Reference : How do droplets form?
Scientific congresses and symposiums : Poster
Physical, chemical, mathematical & earth Sciences : Physics
Engineering, computing & technology : Multidisciplinary, general & others
http://hdl.handle.net/2268/201527
How do droplets form?
English
Van Loo, Stéphanie mailto [Université de Liège > Département d'aérospatiale et mécanique > Microfluidique >]
Stoukatch, Serguei mailto [Université de Liège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes microélectroniques intégrés >]
Kraft, Michael mailto [Université de Liège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes microélectroniques intégrés >]
Gilet, Tristan mailto [Université de Liège > Département d'aérospatiale et mécanique > Microfluidique >]
7-Sep-2016
A0
Yes
No
International
1st International Conference on Multiscale Applications of Surface Tension
from 6 September to 8 September 2016
IAP Micromast 7/38, Université libre de Bruxelles
Bruxelles
Belgium
[en] droplet microfluidics ; flow focusing ; droplet formation
[en] In microfluidics, flow focusing is widely used to produce water-in-oil droplets in microchannels at high frequency. We here report an experimental study of droplet formation in a microfluidic cross-junction with a minimum number of geometrical parameters. We mostly focus on the squeezing regime, which is com- posed of two distinct steps : filling and pinching. The duration of each step (and corresponding volumes of each liquid phase) are analyzed. They vary according to both water and oil flow rates. These variations provide several insights about the fluid flows in both phases. We propose several scaling laws to relate the droplet volume and frequency to the flow rate of both phases. We also discuss the influence of surfactant and channel compliance on droplet formation.
Fonds pour la formation à la Recherche dans l'Industrie et dans l'Agriculture (Communauté française de Belgique) - FRIA ; Pole d'attraction Interuniversitaire - BELSPO - IAP Micromast 7/38
Micromast
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/201527

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