Poster (Scientific congresses and symposiums)
The mysteries of droplet birth in microfluidic cross junctions
Van Loo, Stéphanie; Gilet, Tristan
2016SymiBio Workshop - Synergy Microfluidics & Biology
 

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Keywords :
droplet microfluidics; droplet formation; satellite droplet; surfactant; elasticity
Abstract :
[en] In microfluidics, flow focusing is widely used to produce water-in-oil droplets in microchannels at high frequency. We here present an experimental study of droplet formation in a microfluidic cross-junction with a minimum number of geometrical parameters. We mostly focus on the dripping regime. The dynamics of droplet formation is composed of two distinct steps : filling and pinching. The duration of each step (and cor- responding volumes of each phase) are analyzed. They vary according to both water and oil flow rates. These variations reveal several insights about the fluid flows in both phases. We propose some scaling laws to relate the droplet volume and frequency to the flow rate of both phases. We also discuss the influence of surfactant on droplet formation.
Research center :
Microfluidics lab -Université de Liège
Disciplines :
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Van Loo, Stéphanie ;  Université de Liège > Département d'aérospatiale et mécanique > Microfluidique
Gilet, Tristan  ;  Université de Liège > Département d'aérospatiale et mécanique > Microfluidique
Language :
English
Title :
The mysteries of droplet birth in microfluidic cross junctions
Publication date :
24 March 2016
Number of pages :
A0
Event name :
SymiBio Workshop - Synergy Microfluidics & Biology
Event organizer :
GDR Microfluidique and "Mission pour l'interdisciplinarité du CNRS"
Event place :
Paris, France
Event date :
24/03/2016 - 25/03/2016
Audience :
International
Funders :
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture [BE]
Available on ORBi :
since 07 September 2016

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