title: Droplet breakup in microfluidic junctions of arbitrary angles.
abstract: Experiments performed on droplets breaking up in microfluidic junctions of various angles are described. A critical length is found that controls the breakup process. This quantity depends on the flow geometry only; it is independent of the flow conditions and the fluid characteristics. A theory assuming small capillary numbers describes well the conditions that govern the breakup process.
authors.affiliation: Laboratoire Théorie et Microfluidique, UMR 7083 CNRS-ESPCI, 75005 Paris, France. laure.menetrier@espci.fr
authors.forename: Laure
authors.initials: L
authors.lastname: Ménétrier-Deremble
authors.forename: Patrick
authors.initials: P
authors.lastname: Tabeling